DS.RootState Class
State
Each record has a currentState
property that explicitly tracks what
state a record is in at any given time. For instance, if a record is
newly created and has not yet been sent to the adapter to be saved,
it would be in the root.loaded.created.uncommitted
state. If a
record has had local modifications made to it that are in the
process of being saved, the record would be in the
root.loaded.updated.inFlight
state. (This state paths will be
explained in more detail below.)
Events are sent by the record or its store to the record's
currentState
property. How the state reacts to these events is
dependent on which state it is in. In some states, certain events
will be invalid and will cause an exception to be raised.
States are hierarchical and every state is a substate of the
RootState
. For example, a record can be in the
root.deleted.uncommitted
state, then transition into the
root.deleted.inFlight
state. If a child state does not implement
an event handler, the state manager will attempt to invoke the event
on all parent states until the root state is reached. The state
hierarchy of a record is described in terms of a path string. You
can determine a record's current state by getting the state's
stateName
property:
record.get('currentState.stateName');
//=> "root.created.uncommitted"
The hierarchy of valid states that ship with ember data looks like this:
* root
* deleted
* saved
* uncommitted
* inFlight
* empty
* loaded
* created
* uncommitted
* inFlight
* saved
* updated
* uncommitted
* inFlight
* loading
The DS.Model
states are themselves stateless. What that means is
that, the hierarchical states that each of those points to is a
shared data structure. For performance reasons, instead of each
record getting its own copy of the hierarchy of states, each record
points to this global, immutable shared instance. How does a state
know which record it should be acting on? We pass the record
instance into the state's event handlers as the first argument.
The record passed as the first parameter is where you should stash state about the record if needed; you should never store data on the state object itself.
Events and Flags
A state may implement zero or more events and flags.
Events
Events are named functions that are invoked when sent to a record. The record will first look for a method with the given name on the current state. If no method is found, it will search the current state's parent, and then its grandparent, and so on until reaching the top of the hierarchy. If the root is reached without an event handler being found, an exception will be raised. This can be very helpful when debugging new features.
Here's an example implementation of a state with a myEvent
event handler:
aState: DS.State.create({
myEvent: function(manager, param) {
console.log("Received myEvent with", param);
}
})
To trigger this event:
record.send('myEvent', 'foo');
//=> "Received myEvent with foo"
Note that an optional parameter can be sent to a record's send()
method,
which will be passed as the second parameter to the event handler.
Events should transition to a different state if appropriate. This can be
done by calling the record's transitionTo()
method with a path to the
desired state. The state manager will attempt to resolve the state path
relative to the current state. If no state is found at that path, it will
attempt to resolve it relative to the current state's parent, and then its
parent, and so on until the root is reached. For example, imagine a hierarchy
like this:
* created
* uncommitted <-- currentState
* inFlight
* updated
* inFlight
If we are currently in the uncommitted
state, calling
transitionTo('inFlight')
would transition to the created.inFlight
state,
while calling transitionTo('updated.inFlight')
would transition to
the updated.inFlight
state.
Remember that only events should ever cause a state transition. You should
never call transitionTo()
from outside a state's event handler. If you are
tempted to do so, create a new event and send that to the state manager.
Flags
Flags are Boolean values that can be used to introspect a record's current state in a more user-friendly way than examining its state path. For example, instead of doing this:
var statePath = record.get('stateManager.currentPath');
if (statePath === 'created.inFlight') {
doSomething();
}
You can say:
if (record.get('isNew') && record.get('isSaving')) {
doSomething();
}
If your state does not set a value for a given flag, the value will be inherited from its parent (or the first place in the state hierarchy where it is defined).
The current set of flags are defined below. If you want to add a new flag,
in addition to the area below, you will also need to declare it in the
DS.Model
class.


{% load joinby %} {% load percentage %} {% load sort %} {% spaceless %}
Hi {{ recipient.first_name }} {{recipient.last_name }},
We have detected anomalies in your usages - see below for the details. Please fix them ASAP.
{% if missing_values %}Missing usage type values for the following days:
| Date | Usage Type(s) |
|---|---|
| {{ date_|date:"Y-m-d" }} | {{ usage_types|sort|joinby:", " }} |
Unusually big changes in values between the following days:
| Date 1 | Date 2 | Usage Type | Value 1 | Value 2 | Relative Change | |
|---|---|---|---|---|---|---|
| {{ ch.0|date:"Y-m-d" }} | {{ ch.1|date:"Y-m-d" }} | {{ ch.2.name }} | {{ ch.3|floatformat:2 }} | {{ ch.4|floatformat:2 }} | {{ ch.5|percentage:"dec=2&sign=true" }} | Acknowledge |
In case you'd find any false positives in the table above (or just anomalies that you are aware of), you can acknowledge each one of them, so they won't be reported to anybody anymore (this includes other owners of given Usage Type as well).
Or alternatively, if you find yourself in a situation, where you have to acknowledge such anomalies too often, you may request change of the "Change Tolerance" param in Scrooge's admin panel (requires admin privileges).
{% endif %} {% if reply_to_address %}Please note: This e-mail was sent from a notification-only address that can't accept incoming e-mail. If you want to contact us, please send an e-mail to {{ reply_to_address }} instead. Thanks!
{% endif %}Regards,
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{% extends 'main/header.html' %} {% block content %}
hi this a todo applications
todo_deadline
todo_content
PLEASE NOTE THAT secret key has been set to "" SECRET_KEY = '' debug is set to False DEBUG = False Since debug is set to False ,allowed_hosts is set as: ALLOWED_HOSTS = ['localhost', '<IP_ADDRESS>']


9895215568
01
what is mean by photosynthesis ?
1,546
14,345
563
2,874
03
you are going good
65%
35%
45%
100%


With user-defined functions, awk allows the novice programmer to take another step toward C programming[3] by writing programs that make use of self-contained functions. When you write a function properly, you have defined a program component that can be reused in other programs. The real benefit of modularity becomes apparent as programs grow in size or in age, and as the number of programs you write increases significantly.
[3] Or programming in any other traditional high-level language.
A function definition can be placed anywhere in a script that a pattern-action rule can appear. Typically, we put the function definitions at the top of the script before the pattern-action rules. A function is defined using the following syntax:
function
name
(
parameter-list
) {
statements
}
The newlines after the left brace and before the right brace are optional. You can also have a newline after the close-parenthesis of the parameter list and before the left brace.
The parameter-list is a comma-separated list of variables that are passed as arguments into the function when it is called. The body of the function consists of one or more statements. The function typically contains a return statement that returns control to that point in the script where the function was called; it often has an expression that returns a value as well.
return
expression
The following example shows the definition for an insert() function:
function insert(STRING, POS, INS) { before_tmp = substr(STRING, 1, POS) after_tmp = substr(STRING, POS + 1) return before_tmp INS after_tmp }
This function takes three arguments, inserting one string INS in another string STRING after the character at position POS.[4] The body of this function uses the substr() function to divide the value of STRING into two parts. The return statement returns a string that is the result of concatenating the first part of STRING, the INS string, and the last part of STRING. A function call can appear anywhere that an expression can. Thus, the following statement:
[4] We've used a convention of giving all uppercase names to our parameters. This is mostly to make the explanation easier to follow. In practice, this is probably not a good idea, since it becomes much easier to accidentally have a parameter conflict with a system variable.
print insert($1, 4, "XX")
If the value of $1 is "Hello," then this functions returns "HellXXo." Note that when calling a user-defined function, there can be no spaces between the function name and the left parenthesis. This is not true of built-in functions.
It is important to understand the notion of local and global variables. A local variable is a variable that is local to a function and cannot be accessed outside of it. A global variable, on the other hand, can be accessed or changed anywhere in the script. There can be potentially damaging side effects of global variables if a function changes a variable that is used elsewhere in the script. Therefore, it is usually a good idea to eliminate global variables in a function.
When we call the insert() function, and specify $1 as the first argument, then a copy of that variable is passed to the function, where it is manipulated as a local variable named STRING. All the variables in the function definition's parameter list are local variables and their values are not accessible outside the function. Similarly, the arguments in the function call are not changed by the function itself. When the insert() function returns, the value of $1 is not changed.
However, the variables defined in the body of the function are global variables, by default. Given the above definition of the insert() function, the temporary variables before_tmp and after_tmp are visible outside the function. Awk provides what its developers call an "inelegant" means of declaring variables local to a function, and that is by specifying those variables in the parameter list.
The local temporary variables are put at the end of the parameter list. This is essential; parameters in the parameter list receive their values, in order, from the values passed in the function call. Any extra parameters, like normal awk variables, are initialized to the empty string. By convention, the local variables are separated from the "real" parameters by several spaces. For instance, the following example shows how to define the insert() function with two local variables.
function insert(STRING, POS, INS, before_tmp, after_tmp) { body }
If this seems confusing,[5] seeing how the following script works might help:
[5] The documentation calls it a syntactical botch.
function insert(STRING, POS, INS, before_tmp) { before_tmp = substr(STRING, 1, POS) after_tmp = substr(STRING, POS + 1) return before_tmp INS after_tmp } # main routine { print "Function returns", insert($1, 4, "XX") print "The value of $1 after is:", $1 print "The value of STRING is:", STRING print "The value of before_tmp:", before_tmp print "The value of after_tmp:", after_tmp }
Notice that we specify before_tmp in the parameter list. In the main routine, we call the insert() function and print its result. Then we print different variables to see what their value is, if any. Now let's run the above script and look at the output:
$echo "Hello" | awk -f insert.awk -
Function returns HellXXo The value of $1 after is: Hello The value of STRING is: The value of before_tmp: The value of after_tmp: o
The insert() function returns "HellXXo," as expected. The value of $1 is the same after the function was called as it was before. The variable STRING is local to the function and it does not have a value when called from the main routine. The same is true for before_tmp because its name was placed in the parameter list for the function definition. The variable after_tmp which was not specified in the parameter list does have a value, the letter "o."
As this example shows, $1 is passed "by value" into the function. This means that a copy is made of the value when the function is called and the function manipulates the copy, not the original. Arrays, however, are passed "by reference." That is, the function does not work with a copy of the array but is passed the array itself. Thus, any changes that the function makes to the array are visible outside of the function. (This distinction between "scalar" variables and arrays also holds true for functions written in the C language.) The next section presents an example of a function that operates on an array.
Earlier in this chapter we presented the lotto script for picking x random numbers out of a series of y numbers. The script that we showed did not sort the list of numbers that were selected. In this section, we develop a sort function that sorts the elements of an array.
We define a function that takes two arguments, the name of the array and the number of elements in the array. This function can be called this way:
sort(sortedpick, NUM)
The function definition lists the two arguments and three local variables used in the function.
# sort numbers in ascending order function sort(ARRAY, ELEMENTS, temp, i, j) { for (i = 2; i <= ELEMENTS; ++i) { for (j = i; ARRAY[j-1] > ARRAY[j]; --j) { temp = ARRAY[j] ARRAY[j] = ARRAY[j-1] ARRAY[j-1] = temp } } return }
The body of the function implements an insertion sort. This sorting algorithm is very simple. We loop through each element of the array and compare it to the value preceding it. If the first element is greater than the second, the first and second elements are swapped. To actually swap the values, we use a temporary variable to hold a copy of the value while we overwrite the original. The loop continues swapping adjacent elements until all are in order. At the end of the function, we use the return statement to simply return control.[6] The function does not need to pass the array back to the main routine because the array itself is changed and it can be accessed directly.
[6] In this case, the return is not strictly necessary; "falling off the end" of the function would have the same effect. Since functions can have return values, it's a good idea to always use a return statement, even when you are not returning a value. This helps make your programs more readable.
Here's proof positive:
$lotto 7 35
Pick 7 of 35 6 7 17 19 24 29 35
In fact, many of the scripts that we developed in this chapter could be turned into functions. For instance, if we only had the original, 1987, version of nawk, we might want to write our own tolower() and toupper() functions.
The value of writing the sort() function in a general fashion is that you can easily reuse it. To demonstrate this, we'll take the above sort function and use it to sort student grades. In the following script, we read all of the student grades into an array and then call sort() to put the grades in ascending order.
# grade.sort.awk -- script for sorting student grades # input: student name followed by a series of grades # sort function -- sort numbers in ascending order function sort(ARRAY, ELEMENTS, temp, i, j) { for (i = 2; i <= ELEMENTS; ++i) for (j = i; ARRAY[j-1] > ARRAY[j]; --j) { temp = ARRAY[j] ARRAY[j] = ARRAY[j-1] ARRAY[j-1] = temp } return } # main routine { # loop through fields 2 through NF and assign values to # array named grades for (i = 2; i <= NF; ++i) grades[i-1] = $i # call sort function to sort elements sort(grades, NF-1) # print student name printf("%s: ", $1) # output loop for (j = 1; j <= NF-1; ++j) printf("%d ", grades[j]) printf("\n") }
Note that the sort routine is identical to the previous version. In this example, once we've sorted the grades we simply output them:
$awk -f grade.sort.awk grades.test
mona: 70 70 77 83 85 89 john: 78 85 88 91 92 94 andrea: 85 89 90 90 94 95 jasper: 80 82 84 84 88 92 dunce: 60 60 61 62 64 80 ellis: 89 90 92 96 96 98
However, you could, for instance, delete the first element of the sort array if you wanted to average the student grades after dropping the lowest grade.
As another exercise, you could write a version of the sort function that takes a third argument indicating an ascending or descending sort.
You might want to put a useful function in its own file and store it in a central directory. Awk permits multiple uses of the -f option to specify more than one program file.[7] For instance, we could have written the previous example such that the sort function was placed in a separate file from the main program grade.awk. The following command specifies both program files:
[7] The SunOS 4.1.x version of nawk does not support multiple script files. This feature was not in the original 1987 version of nawk either. It was added in 1989 and is now part of POSIX awk.
$awk -f grade.awk -f /usr/local/share/awk/sort.awk grades.test
This command assumes that grade.awk
is in the
working directory and that the sort function is defined in
sort.awk
in the directory
/usr/local/share/awk.
NOTE: You cannot put a script on the command line and also use the -f option to specify a filename for a script.
Remember to document functions clearly so that you will understand how they work when you want to reuse them.
Lenny, our production editor, is back with another request.
Dale: The last section of each Xlib manpage is called "Related Commands" (that is the argument of a .SH) and it's followed by a list of commands (often 10 or 20) that are now in random order. It'd be more useful and professional if they were alphabetized. Currently, commands are separated by a comma after each one except the last, which has a period. The question is: could awk alphabetize these lists? We're talking about a couple of hundred manpages. Again, don't bother if this is a bigger job than it seems to someone who doesn't know what's involved. Best to you and yours, Lenny
To see what he is talking about, a simplified version of an Xlib manpage is shown below:
.SH "Name" XSubImage - create a subimage from part of an image. . . . .SH "Related Commands" XDestroyImage, XPutImage, XGetImage, XCreateImage, XGetSubImage, XAddPixel, XPutPixel, XGetPixel, ImageByteOrder.
You can see that the names of related commands appear on several lines following the heading. You can also see that they are in no particular order.
To sort the list of related commands is actually fairly simple, given that we've already covered sorting. The structure of the program is somewhat interesting, as we must read several lines after matching the "Related Commands" heading.
Looking at the input, it is obvious that the list of related commands is the last section in the file. All other lines except these we want to print as is. The key is to match all lines from the heading "Related Commands" to the end of the file. Our script can consist of four rules, that match:
The "Related Commands" heading
The lines following that heading
All other lines
After all lines have been read (END)
Most of the "action" takes place in the END procedure. That's where we sort and output the list of commands. Here's the script:
# sorter.awk -- sort list of related commands # requires sort.awk as function in separate file BEGIN { relcmds = 0 } #1 Match related commands; enable flag x /\.SH "Related Commands"/ { print relcmds = 1 next } #2 Apply to lines following "Related Commands" (relcmds == 1) { commandList = commandList $0 } #3 Print all other lines, as is. (relcmds == 0) { print } #4 now sort and output list of commands END { # remove leading spaces and final period. gsub(/, */, ",", commandList) gsub(/\. *$/, "", commandList) # split list into array sizeOfArray = split(commandList, comArray, ",") # sort sort(comArray, sizeOfArray) # output elements for (i = 1; i < sizeOfArray; i++) printf("%s,\n", comArray[i]) printf("%s.\n", comArray[i]) }
Once the "Related Commands" heading is matched, we print that line and then set a flag, the variable relcmds, which indicates that subsequent input lines are to be collected.[8] The second procedure actually collects each line into the variable commandList. The third procedure is executed for all other lines, simply printing them.
[8] The getline function introduced in the next chapter provides a simpler way to control reading input lines.
When all lines of input have been read, the END procedure is executed, and we know that our list of commands is complete. Before splitting up the commands into fields, we remove any number of spaces following a comma. Next we remove the final period and any trailing spaces. Finally, we create the array comArray using the split() function. We pass this array as an argument to the sort() function, and then we print the sorted values.
This program generates the following output:
$awk -f sorter.awk test
.SH "Name" XSubImage - create a subimage from part of an image. .SH "Related Commands" ImageByteOrder, XAddPixel, XCreateImage, XDestroyImage, XGetImage, XGetPixel, XGetSubImage, XPutImage, XPutPixel.
Once again, the virtue of calling a function to do the sort versus writing or copying the code to do the same task is that the function is a module that's been tested previously and has a standard interface. That is, you know that it works and you know how it works. When you come upon the same sort code in the awk version, which uses different variable names, you have to scan it to verify that it works the same way as other versions. Even if you were to copy the lines into another program, you would have to make changes to accommodate the new circumstances. With a function, all you need to know is what kind of arguments it expects and their calling sequence. Using a function reduces the chance for error by reducing the complexity of the problem that you are solving.
Because this script presumes that the sort() function exists in a separate file, it must be invoked using the multiple -f options:
$awk -f sort.awk -f sorter.awk test
where the sort() function is defined in the file sort.awk.


%include file="header_inc_v3.html" />
POSX - Project
Pending
Approved
In Progress
Completed
Quit
Create New Project
Name:
Desc:
Priority:
Very Low
Low
Normal
High
Urgent
Deadline:
Class:
%for c in P_CLASSES:
${c|h}
%endfor
Percent:
%for i in range(0, 101, 10):
${i}%
%endfor
Priority:
Very Low
Low
Normal
High
Urgent
Quality:
--
No Credit
Poor
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Good
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OnTime:
--
No
Yes


About
Version: 1.4.1
Build date: 01-March-2014
Rate this app on Chrome WebStore
Report bugs or wish
Fork source code
Author
Mayank Agarwal
Drop me a mail at
<EMAIL_ADDRESS>, or connect with me through
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Filesaver.js


IDF Female Soldiers Separate Challah, a Torah Commandment for Women
by Video ManagerThis beautiful unique sacred bread is the one thing that unites all Jews. Various Jewish people from the holy city of Tzfat, explore the spiritual meanings behind Challa and the process of making it for the Shabbat.


Threading in Gecko 1.9 2007/08/07
Things change quickly in Internet-land, and between versions 1.8 and 1.9, the Gecko SDK received a major upgrade to its thread library. What once took multiple XPCOM objects, more than few hacks and a prayer for good measure can now be done in a single Javascript file with minimal interference from the world of C++ beneath.
Here is a sample of how one might spin an event off onto a background thread acting as a job queue. The execution is fairly straightforward: a background thread is created; the UI dispatches events onto this background thread; the job on the thread dispatches an event back to the UI thread when it is finished.
Before we start, let's define the objects used to cross the thread boundary. They must be XPCOM objects (but can be implemented in pure Javascript and don't even need to live in the components/
directory) and must implement the nsIRunnable
interface. This interface requires that QueryInterface
respond positively to nsIRunnable
and that a run()
function be defined.
var Foo = function(id) { this.id = id; }; Foo.prototype = { run: function() { try { // Do some work, for now just print something Components.utils.reportError('This is where the background work happens.'); // Callback to the main thread main.dispatch(new FooCallback(this.id, 'SUCCESS'), background.DISPATCH_NORMAL); } catch (err) { Components.utils.reportError(err); } }, QueryInterface: function(iid) { if (iid.equals(Ci.nsIRunnable) || iid.equals(Ci.nsISupports)) { return this; } throw Components.results.NS_ERROR_NO_INTERFACE; } }; var FooCallback = function(id, result) { this.id = id; this.result = result; }; FooCallback.prototype = { run: function() { try { // This is where we can work with the main thread after the job alert('id: ' + id + ', result: ' + result); } catch (err) { Components.utils.reportError(err); } }, QueryInterface: function(iid) { if (iid.equals(Ci.nsIRunnable) || iid.equals(Ci.nsISupports)) { return this; } throw Components.results.NS_ERROR_NO_INTERFACE; } };
Here is the code we need to actually use these objects to spawn a background thread and dispatch a job to it. The callback will end up on the main thread's event queue.
background = Cc['@mozilla.org/thread-manager;1'].getService().newThread(0); main = Cc['@mozilla.org/thread-manager;1'].getService().mainThread; background.dispatch(new Foo(id), background.DISPATCH_NORMAL);
The first two lines here should be executed on application startup and will leave thread references in main
and background
. The third line actually puts a job on the background queue. This can be called anywhere and will likely be used inside a loop to push a lot of compute-intensive work onto the background thread, allowing the UI thread to remain responsive.
A note about the id
passed to the thread objects: this is not strictly necessary, but I find it very convenient to have the option of tracking individual jobs through the event queue. The id
is especially useful when you're using the callback to update a certain element of the UI with the result of the job. Then in the callback it's as simple as document.getElementById(this.id)
.
Apologies for the bits-and-pieces examples. I'm ripping this out of unreleased code so I don't have time to create a demo app for each one. I recommend starting with Mark Finkle's hello world.
Comments (119)
Thanks a lot,
that really helped a lot.
Martin
— Martin S. — 2007/09/24 6:13 pm
thanks richard for this input.
i have used your code and wrapped it into classes, and everything was working fine with the 1.9b2.
since then, same code crashes. i've filed a bug to bugzilla here: https://bugzilla.mozilla.org/show_bug.cgi?id=413671 in which i think you might be interested.
one of the commenters states that 'you may not use xul windows to create javascript objects which you then pass to other threads'.
..any clues or comments appreciated :)
cheers,
r.
— Roberto Ostinelli — 2008/02/11 3:23 am
hi,
Need to know that it will not work with lower version of Gecko or not?
I am working with Gecko <IP_ADDRESS>_0000000000
My application is desktop application. I am using xul for UI and I need to use threading in that (javascript)
I tried the code and it will giving error for creating instance of thread manager itself. ( might be because its in firefox 3)
So If you know any solution for that, then pls let me know.
Thanks
— Krishna — 2008/03/11 1:46 am
Hello,
thank you for explaining. I followed the steps and it works. But when I put an expression like
var i=new Date().getTime();
in the background thread, Firefox 3 beta 5 freezes. It also happens with loop. What might be the reason for that? Even I can not find a sleep method in the new Thread API. How can one let a thread sleep for a while in Gecko 1.9 ?
Best regards ninjafette
— ninjafette — 2008/04/26 9:55 am
Good point, ninjaffette. I'm also looking for a Thread.sleep function.. does not seem to be there. Very annoying..
— Arjan — 2008/06/21 7:47 am


--- layout: compress --- {% assign educations = site.data.cv.education_demo %} {% assign experiences = site.data.cv.experience_demo %} {% assign projects = site.data.cv.projects_demo %} {% include head.html %}


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What are the Differences Between Relative, Absolute and Fixed Positioning?
First off lets talk about positioning in HTML. Lets imagine you have inserted a square on your webpage, it will automatically be placed on the page as position: static; in another words flow with the page. We can see this in the example below. This is the default for the HTML property position. The position property is made up of top, right, bottom and left.
|
|

 |
.container { height: 100px; width: 300px; border: 0px; background-color: white; } .square1 { position: static; height: 50px; width: 50px; border: 0px; background-color: black; } |
Relative
Now if we wanted to move the element using top, left, botom or right we would use position: relative;. Here i've used left: 30px; and top: 30px;. It has moved it 30 pixels down from the top and pushed it 30 pixels to the right from the left. This is not using the positions of the nearest parent though.
|
|

 |
.container { height: 100px; width: 300px; border: 0px; background-color: white; } .square2 { position: relative; left: 30px; top: 30px; height: 50px; width: 50px; border: 0px; background-color: black; } |
Absolute
The use position: absolute; lets you place the element anywhere on the page. You have to be careful with overusing it, as it limits the flexibility of the page as the elements using this now have no flow on the page. The same positioning attributes top, left, bottom and right are used. Absolute positions it to the nearest positioned parent NOT using static. For example the black box has position: absolute; left: 1px; top: 1px;. The red square has position: absolute; right: 5px; top: 30px;.
|
|

 |
.container3 { position: relative; height: 100px; width: 300px; border: 0px; background-color: white; } .square3 { position: absolute; left: 1px; top: 1px; height: 50px; width: 50px; border: 0px; background-color: black; } .red-square { position: absolute; right: 5px; top: 30px; height: 50px; width: 50px; border: 0px; background-color: red; } |
Fixed Positioning
Now onto the last one and I say easiest one to understand. position: fixed; is used to keep something fixed to the screen say for example a navagation bar. You don't want to have to scroll all the way back to the top once you have finished reading a long page. You can see an example of this on this page now. As you scroll down the page it always stays at the top of the window and doesn't disappear.
I hope that helped you understand these concepts more!
See you soon!


Leon King in Rangers contract snub as Manchester City, Liverpool and Chelsea eye Ibrox starlet
The Light Blues fear they could lose the highly-rated youngster in the same vein as Billy Gilmour.
by Scott McDermott, https://www.dailyrecord.co.uk/authors/scott-mcdermott/Rangers fear they could lose Ibrox starlet Leon King - in the same way Billy Gilmour left for Chelsea.
The young defender, who doesn’t turn 16 until January, has turned down Gers’ initial offer of a first professional contract.
And Mail Sport understands that Premier League giants Manchester City, Liverpool and Chelsea - as well as German outfit RB Leipzig - are all monitoring his situation.
Glasgow-born King is rated as one of the most prodigious talents in the Rangers Academy and featured for their development side aged just 14.
At 15, he’s currently part of Scotland’s Under-17 set-up, such is the centre-back’s huge potential.
With the national team, he plays beside Liam Morrison who left Celtic for Bayern Munich in a similar move last summer.
Rangers were stung in July 2017 when they couldn’t agree a professional contract with midfielder Gilmour.
A year before his youth registration at Ibrox was up - similarly to the King scenario now - they agreed a fee of around £500,000 for Gilmour who left for London.
He’s now part of Frank Lampard’s first team squad at Stamford Bridge and made his Premier League debut this season.
King is in the same boat and Rangers are desperate to keep him at the Hummel Training Centre
But after turning down the first offer of a pro deal, the likes of City, Liverpool, Chelsea and Leipzig - who’ve watched King for over a year - are ready to pounce.


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The dashboard currently offers one API function, but may soon end up offering more. To communicate with the API
securely
a "handshake" token will need to be passed over, normally in a
POST
operation and normally as an "
Authorization: bearer [xxxxxxxxxxxxxxxxxxxxxxxxxx]
" token. See examples below for details.
To test to see if a developers API token is valid you should call the following API endpoint.
http://{{host}}/api/checkToken
This is a
POST
operation and you will need to pass the developers token you are checking as a
token
parameter and the secret handshake token in the headers as
Authorization: bearer
.
This is how you would check your own token using cURL.
{{{curlCode curlCode}}}
This is what a success response looks like.
{{{curlCode responseCode}}}
And this code is how you would check your own developers token using node.
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You
should
not
check the developers token each time they make a GraphQL call. The
expires_in
tells you in seconds how long you should cache the check for before requesting a new
check.


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public class AudioFeatures
| Constructor and Description |
|---|
AudioFeatures(float acousticness,
java.lang.String analysisUrl,
float danceability,
int durationMs,
float energy,
java.lang.String id,
float instrumentalness,
int key,
float liveness,
float loudness,
int mode,
float speechiness,
float tempo,
int timeSignature,
java.lang.String trackHref,
java.lang.String type,
java.lang.String _uri,
TrackURI uri,
float valence) |
| Modifier and Type | Method and Description |
|---|---|
float |
component1()
A confidence measure from 0.0 to 1.0 of whether the track is acoustic.
|
float |
component10()
The overall loudness of a track in decibels
|
int |
component11()
Mode indicates the modality
|
float |
component12()
Speechiness detects the presence of spoken words in a track.
|
float |
component13()
The overall estimated tempo of a track in beats per minute
|
int |
component14()
An estimated overall time signature of a track.
|
java.lang.String |
component15()
A link to the Web API endpoint providing full details of the track.
|
java.lang.String |
component16()
The object type
|
TrackURI |
component18()
The Spotify URI for the track.
|
float |
component19()
A measure from 0.0 to 1.0 describing the musical positiveness conveyed by a track.
|
java.lang.String |
component2()
An HTTP URL to access the full audio analysis of this track.
|
float |
component3()
Danceability describes how suitable a track is for dancing based on a combination
|
int |
component4()
The duration of the track in milliseconds.
|
float |
component5()
Energy is a measure from 0.0 to 1.0 and represents a perceptual measure of intensity and
|
java.lang.String |
component6()
The Spotify ID for the track.
|
float |
component7()
Predicts whether a track contains no vocals.
|
int |
component8()
The key the track is in.
|
float |
component9()
Detects the presence of an audience in the recording.
|
AudioFeatures |
copy(float acousticness,
java.lang.String analysisUrl,
float danceability,
int durationMs,
float energy,
java.lang.String id,
float instrumentalness,
int key,
float liveness,
float loudness,
int mode,
float speechiness,
float tempo,
int timeSignature,
java.lang.String trackHref,
java.lang.String type,
java.lang.String _uri,
TrackURI uri,
float valence) |
boolean |
equals(java.lang.Object p) |
float |
getAcousticness()
A confidence measure from 0.0 to 1.0 of whether the track is acoustic.
|
java.lang.String |
getAnalysisUrl()
An HTTP URL to access the full audio analysis of this track.
|
float |
getDanceability()
Danceability describes how suitable a track is for dancing based on a combination
|
int |
getDurationMs()
The duration of the track in milliseconds.
|
float |
getEnergy()
Energy is a measure from 0.0 to 1.0 and represents a perceptual measure of intensity and
|
java.lang.String |
getId()
The Spotify ID for the track.
|
float |
getInstrumentalness()
Predicts whether a track contains no vocals.
|
int |
getKey()
The key the track is in.
|
float |
getLiveness()
Detects the presence of an audience in the recording.
|
float |
getLoudness()
The overall loudness of a track in decibels
|
int |
getMode()
Mode indicates the modality
|
float |
getSpeechiness()
Speechiness detects the presence of spoken words in a track.
|
float |
getTempo()
The overall estimated tempo of a track in beats per minute
|
int |
getTimeSignature()
An estimated overall time signature of a track.
|
java.lang.String |
getTrackHref()
A link to the Web API endpoint providing full details of the track.
|
java.lang.String |
getType()
The object type
|
TrackURI |
getUri()
The Spotify URI for the track.
|
float |
getValence()
A measure from 0.0 to 1.0 describing the musical positiveness conveyed by a track.
|
int |
hashCode() |
java.lang.String |
toString() |
public AudioFeatures(float acousticness, java.lang.String analysisUrl, float danceability, int durationMs, float energy, java.lang.String id, float instrumentalness, int key, float liveness, float loudness, int mode, float speechiness, float tempo, int timeSignature, java.lang.String trackHref, java.lang.String type, java.lang.String _uri, TrackURI uri, float valence)
acousticness
- A confidence measure from 0.0 to 1.0 of whether the track is acoustic.1.0 represents high confidence the track is acoustic.analysisUrl
- An HTTP URL to access the full audio analysis of this track.An access token is required to access this data.danceability
- Danceability describes how suitable a track is for dancing based on a combinationof musical elements including tempo, rhythm stability, beat strength, and overall regularity. A value of0.0 is least danceable and 1.0 is most danceable.durationMs
- The duration of the track in milliseconds.energy
- Energy is a measure from 0.0 to 1.0 and represents a perceptual measure of intensity andactivity. Typically, energetic tracks feel fast, loud, and noisy. For example, death metal has high energy,while a Bach prelude scores low on the scale. Perceptual features contributing to this attribute includedynamic range, perceived loudness, timbre, onset rate, and general entropy.id
- The Spotify ID for the track.instrumentalness
- Predicts whether a track contains no vocals. “Ooh” and “aah” sounds aretreated as instrumental in this context. Rap or spoken word tracks are clearly “vocal”. The closerthe instrumentalness value is to 1.0, the greater likelihood the track contains no vocal content.Values above 0.5 are intended to represent instrumental tracks, but confidence is higher asthe value approaches 1.0.key
- The key the track is in. Integers map to pitches using standard Pitch Class notation.E.g. 0 = C, 1 = C♯/D♭, 2 = D, and so on.liveness
- Detects the presence of an audience in the recording. Higher liveness values representan increased probability that the track was performed live. A value above 0.8 provides strong likelihoodthat the track is live.loudness
- The overall loudness of a track in decibels (dB). Loudness values are averaged acrossthe entire track and are useful for comparing relative loudness of tracks. Loudness is the quality of asound that is the primary psychological correlate of physical strength (amplitude). Values typical rangebetween -60 and 0 db.mode
- Mode indicates the modality (major or minor) of a track, the type of scale from whichits melodic content is derived. Major is represented by 1 and minor is 0.speechiness
- Speechiness detects the presence of spoken words in a track. The more exclusivelyspeech-like the recording (e.g. talk show, audio book, poetry), the closer to 1.0 the attribute value.Values above 0.66 describe tracks that are probably made entirely of spoken words. Values between 0.33and 0.66 describe tracks that may contain both music and speech, either in sections or layered, includingsuch cases as rap music. Values below 0.33 most likely represent music and other non-speech-like tracks.tempo
- The overall estimated tempo of a track in beats per minute (BPM). In musical terminology, tempois the speed or pace of a given piece and derives directly from the average beat duration.timeSignature
- An estimated overall time signature of a track. The time signature (meter) is anotational convention to specify how many beats are in each bar (or measure).trackHref
- A link to the Web API endpoint providing full details of the track.type
- The object type: “audio_features”uri
- The Spotify URI for the track.valence
- A measure from 0.0 to 1.0 describing the musical positiveness conveyed by a track.Tracks with high valence sound more positive (e.g. happy, cheerful, euphoric), while tracks with lowvalence sound more negative (e.g. sad, depressed, angry).public float getAcousticness()
A confidence measure from 0.0 to 1.0 of whether the track is acoustic.
1.0 represents high confidence the track is acoustic.
public java.lang.String getAnalysisUrl()
An HTTP URL to access the full audio analysis of this track.
An access token is required to access this data.
public float getDanceability()
Danceability describes how suitable a track is for dancing based on a combination
of musical elements including tempo, rhythm stability, beat strength, and overall regularity. A value of0.0 is least danceable and 1.0 is most danceable.
public int getDurationMs()
The duration of the track in milliseconds.
public float getEnergy()
Energy is a measure from 0.0 to 1.0 and represents a perceptual measure of intensity and
activity. Typically, energetic tracks feel fast, loud, and noisy. For example, death metal has high energy,while a Bach prelude scores low on the scale. Perceptual features contributing to this attribute includedynamic range, perceived loudness, timbre, onset rate, and general entropy.
public java.lang.String getId()
The Spotify ID for the track.
public float getInstrumentalness()
Predicts whether a track contains no vocals.
“Ooh” and “aah” sounds aretreated as instrumental in this context. Rap or spoken word tracks are clearly “vocal”. The closerthe instrumentalness value is to 1.0, the greater likelihood the track contains no vocal content.Values above 0.5 are intended to represent instrumental tracks, but confidence is higher asthe value approaches 1.0.
public int getKey()
The key the track is in.
Integers map to pitches using standard Pitch Class notation.E.g. 0 = C, 1 = C♯/D♭, 2 = D, and so on.
public float getLiveness()
Detects the presence of an audience in the recording.
Higher liveness values representan increased probability that the track was performed live. A value above 0.8 provides strong likelihoodthat the track is live.
public float getLoudness()
The overall loudness of a track in decibels
(dB). Loudness values are averaged acrossthe entire track and are useful for comparing relative loudness of tracks. Loudness is the quality of asound that is the primary psychological correlate of physical strength (amplitude). Values typical rangebetween -60 and 0 db.
public int getMode()
Mode indicates the modality
(major or minor) of a track, the type of scale from whichits melodic content is derived. Major is represented by 1 and minor is 0.
public float getSpeechiness()
Speechiness detects the presence of spoken words in a track.
The more exclusivelyspeech-like the recording (e.g. talk show, audio book, poetry), the closer to 1.0 the attribute value.Values above 0.66 describe tracks that are probably made entirely of spoken words. Values between 0.33and 0.66 describe tracks that may contain both music and speech, either in sections or layered, includingsuch cases as rap music. Values below 0.33 most likely represent music and other non-speech-like tracks.
public float getTempo()
The overall estimated tempo of a track in beats per minute
(BPM). In musical terminology, tempois the speed or pace of a given piece and derives directly from the average beat duration.
public int getTimeSignature()
An estimated overall time signature of a track.
The time signature (meter) is anotational convention to specify how many beats are in each bar (or measure).
public java.lang.String getTrackHref()
A link to the Web API endpoint providing full details of the track.
public java.lang.String getType()
The object type
: “audio_features”
public TrackURI getUri()
The Spotify URI for the track.
public float getValence()
A measure from 0.0 to 1.0 describing the musical positiveness conveyed by a track.
Tracks with high valence sound more positive (e.g. happy, cheerful, euphoric), while tracks with lowvalence sound more negative (e.g. sad, depressed, angry).
public float component1()
A confidence measure from 0.0 to 1.0 of whether the track is acoustic.
1.0 represents high confidence the track is acoustic.
public java.lang.String component2()
An HTTP URL to access the full audio analysis of this track.
An access token is required to access this data.
public float component3()
Danceability describes how suitable a track is for dancing based on a combination
of musical elements including tempo, rhythm stability, beat strength, and overall regularity. A value of0.0 is least danceable and 1.0 is most danceable.
public int component4()
The duration of the track in milliseconds.
public float component5()
Energy is a measure from 0.0 to 1.0 and represents a perceptual measure of intensity and
activity. Typically, energetic tracks feel fast, loud, and noisy. For example, death metal has high energy,while a Bach prelude scores low on the scale. Perceptual features contributing to this attribute includedynamic range, perceived loudness, timbre, onset rate, and general entropy.
public java.lang.String component6()
The Spotify ID for the track.
public float component7()
Predicts whether a track contains no vocals.
“Ooh” and “aah” sounds aretreated as instrumental in this context. Rap or spoken word tracks are clearly “vocal”. The closerthe instrumentalness value is to 1.0, the greater likelihood the track contains no vocal content.Values above 0.5 are intended to represent instrumental tracks, but confidence is higher asthe value approaches 1.0.
public int component8()
The key the track is in.
Integers map to pitches using standard Pitch Class notation.E.g. 0 = C, 1 = C♯/D♭, 2 = D, and so on.
public float component9()
Detects the presence of an audience in the recording.
Higher liveness values representan increased probability that the track was performed live. A value above 0.8 provides strong likelihoodthat the track is live.
public float component10()
The overall loudness of a track in decibels
(dB). Loudness values are averaged acrossthe entire track and are useful for comparing relative loudness of tracks. Loudness is the quality of asound that is the primary psychological correlate of physical strength (amplitude). Values typical rangebetween -60 and 0 db.
public int component11()
Mode indicates the modality
(major or minor) of a track, the type of scale from whichits melodic content is derived. Major is represented by 1 and minor is 0.
public float component12()
Speechiness detects the presence of spoken words in a track.
The more exclusivelyspeech-like the recording (e.g. talk show, audio book, poetry), the closer to 1.0 the attribute value.Values above 0.66 describe tracks that are probably made entirely of spoken words. Values between 0.33and 0.66 describe tracks that may contain both music and speech, either in sections or layered, includingsuch cases as rap music. Values below 0.33 most likely represent music and other non-speech-like tracks.
public float component13()
The overall estimated tempo of a track in beats per minute
(BPM). In musical terminology, tempois the speed or pace of a given piece and derives directly from the average beat duration.
public int component14()
An estimated overall time signature of a track.
The time signature (meter) is anotational convention to specify how many beats are in each bar (or measure).
public java.lang.String component15()
A link to the Web API endpoint providing full details of the track.
public java.lang.String component16()
The object type
: “audio_features”
public TrackURI component18()
The Spotify URI for the track.
public float component19()
A measure from 0.0 to 1.0 describing the musical positiveness conveyed by a track.
Tracks with high valence sound more positive (e.g. happy, cheerful, euphoric), while tracks with lowvalence sound more negative (e.g. sad, depressed, angry).
public AudioFeatures copy(float acousticness, java.lang.String analysisUrl, float danceability, int durationMs, float energy, java.lang.String id, float instrumentalness, int key, float liveness, float loudness, int mode, float speechiness, float tempo, int timeSignature, java.lang.String trackHref, java.lang.String type, java.lang.String _uri, TrackURI uri, float valence)
public java.lang.String toString()
public int hashCode()
public boolean equals(java.lang.Object p)


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Hi, Nicole
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Hi, i am good
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Glad to see you ;)
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What do you think about my new Dashboard?
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Your Dashboard is great
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How does the binding and digesting work in AngularJS?, Peter?
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oh that's your question?
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little reduntant, no?
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literally we get the question daily
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I know. I, however, am not a nerd, and want to know
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I guess every developer has its favorite question to ask a candidate during an interview. Mine is “what do you read to get up to date with the state-of-the-art of iOS development ?”. I believe the answer tells a lot : you can have a better idea of how bad the candidate wants to learn. The perfect situation is when the candidate teaches you something, of course. Let’s try to analyze it.
Newsletters
Newsletters are great. You get curated, regular news in your mailbox without doing anything. You get a list of trending topics and you can choose what to read. Also, because you have them in your mailbox, you can always use the search tool to get your hand back “that link that you remember but you didn’t read because you didn’t have time”. There are plenty of interesting newsletters in the iOS world :
My favorite, of course. Dave Verwer has been collecting the best articles in the iOS world for what feels like forever. I can’t remember a time when iOS Dev Weekly did not exist. In my opinion, when someone asks you how to be a better iOS developer, this should be the first link to send. Every week, you get a list of articles from all kind of subjects : announcements, tools, code, design, jobs, business, …
If you are doing iOS development in 2017, there’s a pretty big chance that you’re writing Swift. Swift news by Natasha The Robots tackles the same kind of subjects than iOS Dev Weekly except that it only talk about the Swift language. It’s a really recent language that evolves quickly and you can’t follow every Pull Request on GitHub so it’s good to have a summary. The cool “feature” of this newsletter is a weekly selection of Swift libraries.
Every community has its “stars” or “elite”. They have public discussions, think about problems and talk at conferences. The iOS community is no exception. Here’s a few influencers you might want to follow :
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Okay, so now you have everything set up to follow discussions but programming is also about code, right ? If you want to now more about the iOS world, spend some time on GitHub and/or StackOverflow. When you see an issue you can fix or a question you can answer, do it. You’ll learn a lot by helping others and it will also make your resume shine !
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I strongly believe that one way to be better at one technology is … to be interested in other technologies. When you only read about the same topic over and over you’ll probably end up reading the same kind of patterns, the same solutions to the same problems. When a developer has the curiosity to get out of his/her comfort zone and learn something totally different, this is when things get really interesting. You’ll learn what kind of problems apply to which language, stack, technology and how they can be resolved. Even it does not seem to apply on your specific iOS issue, it will help eventually because you’ll be tempted to apply a new solution to an old problem.
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I live in a j's podcast for monday.
Those wonderful show is keeping up with the jones is a j jones.
Yes.
How are you?
I'm good.
You look super hot.
Oh, thank you.
It's that wonder woman outfit does it for me every single time.
Hey, yeah.
I mean, I just have to wear it when we podcast.
We've had a really transitional week.
We have.
Let's fill up highs and lows.
Yeah.
We on the high end, we said goodbye to all our students who graduated on Tuesday night.
And that's kind of the low end.
It is also.
I know what it looks like tomorrow to go into work and the students are there.
And it feels weird.
It feels weird for at least a month.
It does because we're not teaching.
Yeah, we're not teaching 10 times.
We're teaching maybe once.
I was just thinking how weird Sunday felt because I came home from church and I didn't
have to think, oh, man, I have to polish off six teachings before I go to bed tonight.
So, well, there's a high and a low in that too, but yeah, Tuesday night we did graduation.
It was great to see the hall full with students and with friends and family.
Yeah, it was amazing.
That was incredible.

You did great.
You did awesome.
Well done.
You really did.
Yeah.
And a huge thanks to all our staff as well.
I was thinking if we could have done graduation again, I think I would have labored the fact
that the students would have got nothing were enough for our incredible staff.
Yeah. I mean, we can't do this school without them.
No, and Jeff and Becky were very kind and honoring us,
but the real honor goes to our staff and to our small group leaders, who,
I think it was, I forget who was, it told us this great example that often in ministry,
you look like you're the person on the top of like a carnival float just waving at people.
Right.

But in reality, there's like 100 people in bicycles underneath the carnival float making it go.
And that's our staff. They're so hard working. And it's a fifth year that we've done the school.
It was the first year we started a second year and we had new staff. They just got thrown in and
we're so proud of our staff. The pace was crazy and we all made it.
I know it's going to be Pina Coladas tomorrow.
I can remember.
Actually, everybody asks us also, the students aren't there.
Like you guys just, what do you do?
Supermellow.

One of the first things we do is we review every piece of feedback we get.
Yeah.

Yeah.
We're super excited about it.
But we also have other jobs that are.
- They're sort of semi-on hold for the eight months of the school,
and the minimum is being done, and now we get to get cut up.
- You know, on the topic of our amazing staff,
and on the topic of other areas of responsibility,
Michelle Vouter spoke on Monday night emanate.
- She did a fantastic shot.
- She was astonishing.
Teaching on peace.
- Growing peace.
- We'll put a link in the show notes.
If you don't get to see that,
it's an excellent, practical teaching
on how to develop more peace in your life.
And Michelle is such a carrier of peace and joy in the Holy Spirit and watching her talk
about that was awesome.
Yeah.
She's somebody you need to watch on video and not just listen to an audio because she's
super animated.
Yeah.
Her arms and everything.
I'm coming up with my own impression.
Or or?
Well, she does this thing with her arms or she goes like this.
See, if you were watching me on video, you'd know what I was saying, but this is a podcast.
Okay.
Sorry.
to fashion and that's Michelle voters apparently.
Let's skip the rest of our week because it was just busy.
There was some respite in that we had some surprise visitors from Toronto
whenever dinner with them, but let's go straight to Friday.
Friday. What happened Friday?
Friday was a beautiful day.
Is that because you have an amazing husband who surprised you or something?
It is. You took me.
Let's talk about me.
OK.
You randomly came up with the idea.
There was no randomness.
Well, you've never done it before.
So I said, I surprised you.
Yes. You surprised me with a spa day.
That's right.
Yes.
We got mani patties.
No, but that's OK, because I don't really love people touching my feet.
Right.
But we got massages in the same room.
Why is that so creepy?
I know a couple's massage.
OK, you said couples massage.
We paid to random strangers to touch us.
It is kind of weird.
Really think about it though.
It's really weird.
It's like, Hey, here's the money rub me.
But it's totally fine because my wife's like next to me.
Right.
It's yeah.
Yeah.
What what's weirder is having not been in a spa before.
So you go into separate locker rooms, obviously.
So there's a man's room in a ladies room and you get changed.
you put on this robe that you hope somebody has washed.
I know I didn't think that to us like,
they steam these or if they just like,
wash them.
Oh, so you're wearing this robe and then when the staff of our
members comes and gets you and they take you through to a,
what is called a coed relaxation room, but there's nothing.
It's not called a coed relaxation.
It is in all the literature.
It doesn't take coed on it.
It does.
It says relaxation now.
It's a coed relaxation lounge which is way too glamorous term for what is otherwise somebody's living room that's slightly dark while mostly undressed people with robes that don't fit properly or clothes are sitting in armchairs while waiting for your massage.
and then nobody's talking and you're not supposed to use your phones.
So everybody's just sort of staring at each other.
And they're playing music, which I can only describe as soaking music without any anointing.
So just super annoying.
We decided to call it the lounge of awkwardness.
So awkward because anybody who sat down or stood up, I was like, I don't know where to look.
But they're they're they're a good lord.
So there was nothing relaxing about that part.
No, at all.
No.
but then we had but there was free free water that tasted kind of like orange or something.
Like orange with smiling geraniums or something.

Well you know anybody's had a massage you know that usually the room is sort of darker.
Yeah, but it was at the Gaylord Opry, which in itself is a great place.
Yeah.
I love going there.
But let's gloss over that.
That just sounds weird, dark.
No, it was good.
It was good.
And then afterwards, there was like Sona's and a eucalyptus steam room, which when the steam first started firing, I thought something was horribly wrong and I was going to cook alive and I almost ran out of this team room.
But then I decided it must be safe, but it was a little scary.
Right. But then it got better because on Friday and Saturday of this week, we were doing our load day.
So we have finished the first part of our diet, which was basically lose a lot of weight, maintain that weight loss for 30 days.
And you could be done. You could be done on that bond, but we decided to go for another round.
So in order to do that, you have to do two days of loading where you're trying to fuel your body with as much fat as possible.
Which I took as a personal challenge.
Yes, you did.
Yeah, and I thought I'm going to defend my family's honor. How I will give that.
So we went to Bartaco and feasted. Yes, we did. And it was super good.
And then, babe, remember, we almost ran out of power in the leaf on the way home.
Right. Talk about that. Well, in the morning, you had said,
should we take the minivan? And I said, oh, we'll be fine.
So yeah, so when we were getting bar taco, I realized we were not going to be fine.
And so we drove around and we tried to find a charging station, but to our
chagrin, there was the charging stations we found all had motorized vehicles parked
in them.
We have petrol based vehicles parked in electrical vehicle, parking only.
Right.
So after you hit their tail lights with a crowbar that we keep in the front
work on for services. We moved on.
Yes. So we went to a couple different places and then we sort of in Starway down Hillsboro
Road and around Mackatcher.
 I thought we'll just make it home.
And actually true to your prophecy, we did.
Yes.
But it was somewhat scary to watch you go from 10% to 8%, 5%.
You're like, babe, put your arms at the window and flap.
Something's going to work here. I was like, babe, we're going to be fine.
No, I just started speaking in tongues.
But literally as we rolled into our driveway, it had.
Everything was flashing.
Everything was flashing.
Zero percent zero miles as we actually as we drove into our subdivision.
And then Saturday, you were out all day at Pearl event.
We'll talk about that in a second.
I stayed home and made cupcakes and Madlands with the girls and filmed it.
They've been watching YouTube kids a lot.
Yeah.
So they now want to be on YouTube.
So I spent the whole day filming.
I haven't edited it yet, but they just love it.
- Yeah, and they're so cute.
- And they made awesome cupcakes.
- Yeah.
- Talk about the Pearl event.
- The Pearl event, it was a women's event
that I was invited to speak at.
And Crystal Black was speaking there as well as Alex Seeley
from the belonging and a couple of others.
And it was great, it was a women's event.
There was just over 100 women, I don't know how many.
It was a long day though, wasn't it?
It was a long day.
Because of the marathon and the event started at nine,
I wasn't sure what traffic would be like.
I don't really know downtown Nashville that well.
So we left at seven thinking,
okay, we'll get there by eight or eight, 15 or whatever.
And we got there like 20 to eight.
So.
And you didn't leave until seven p.m.
730.
Yeah, so we were there almost 12 hours.
which you know it was great and in the holy spirit totally showed up and we did a fire tunnel slash pearl tunnel they got pearls at the end of the fire tunnel and
and so there was there was lots of high points and the worship was fantastic.
Yeah so it was fun.
I said Saturday night we got to go for sushi.

Right. And if the goal is to eat fat, let's eat fatty fish.
Yes.
And tempura fried vegetables.
Yes, although neither of us finished our food because it was just like, I can't do this.
Ridiculous.
Yeah, it was bad.
Speaking of food, we're going to segue into our main topic.
But I want to let you know that at the end of this podcast, we're going to be talking about giving away donuts, coffee, burgers, books, all the good things that fuel our life.
we're going to be talking about that at the end of this podcast, talking about how we can fuel you
with the stuff that fuels us. So stay tuned for that. All right, our main topic for this week,
my darling, is I want to talk a little bit about learning.
Within the context, we've just finished eight months of doing the school. And I thought we would
pause and reflect on what it's like, not what it's like running a school, but what are some of the
the observations we've made as we've watched hundreds of people learn stuff.
Yeah.
And can I share some of that?
I remember when I was in teacher training college, I did my degree, I left, I wanted
to be a computer person, got all the plans, I went back to do my postgraduate in teaching.
And I had a lecture there, it was actually a tutor for a while, a great man who's now
no longer with us.
I hope he meant Jesus.
I gave him a copy of CS Lewis book.
He was an atheist at the time when I met him.
But anyway, I digress.
His name was Dr. Tom Conlon.
And he very early on, he wrote up this formula on one of the white boards that
said learning and then an equal sign and then experience plus reflection.
His whole premise was you only learn when you reflect on an experience you had.
So here we are.
We got five years of running a school under a belt.
Let's reflect on some of the experiences we've had and see if we can help people
and ourselves learn stuff.
Yeah, come on.
It'd be great.
Wednesday Churchill said this.
He said, the most important thing about education is appetite.
And I'd probably start there.
I think in watching students come and get their lives transformed.
It's true no matter where you apply this, but basically what you put in
determines what you get out.
Yeah.
And yeah, it's the hungry ones.
They get the most out of anything.
Right.
Yeah.
The biggest change comes from the biggest hunger.
Yeah.
We had Dick Joyce with us this morning.
Yeah.
Speaking at Grace Center, and he did something brilliant.
He said, you know, before I speak, can you stretch out your hand to me?
And we're going to pray for me.
And he said, we're going to do this for two reasons.
He said, one, I want you to pray and ask God to fill the person he sent to speak to
this one, which I loved.
And he said, the second thing is you're stretching out your hand towards me because
we don't want to be passive listeners this morning.
You want to reach it and you want to grab something from God.
And I thought, that's amazing.
Because the difference between hungry people and people who aren't hungry is
the hungry people are looking for food.
The other people are indifferent about whether food arrives at them.
Right.
Hungry people are not apathetic and they're not sort of like going through the
motions.
They're actually looking to get what they can right out of each experience.
Because I realize I can be guilty of that.
I realize that especially as a teacher, if somebody doesn't teach me in the way
I want to be taught, I find it very difficult to feed myself.
Right.

But actually my hunger level isn't dictated by somebody else's teaching level.
Right.
If you're hungry, you're going to find scraps wherever they may be.
And actually, even if you go into any event, whether it's a service or
school or whatever and just say, you know, Holy Spirit, would you help me
mind for what you have for me today?
Right.

He helps you with that, even when the teaching style is something that isn't typically conducive to how you learn.
Right.
And the truth is you can learn something from everyone.
Sure you can.
Yeah.
You know, there's a strange phenomenon that probably everybody's seen and we've probably experienced it in our own lives that we go to a conference or we go to a tree or maybe we go into a school and we experienced this mountaintop high while we're there.
But then if we're honest, when we look back on our lives afterwards, there's a danger that we can plummet into a valley.
One of the strangest dynamics that we've seen is that sometimes those that burn the brightest
tend to burn out after the experience. What would you say are some of the things that you can
implement to make sure that what you have becomes a lifestyle and wasn't just an event?
Well, maintaining intimacy after the event, whatever that may be, whether it's a conference
or school or whatever that you learn to feed yourself and you learn to check in with yourself
and make sure that you're still in line with what God's asking you to do and who He's asking you to
be. I wonder if the reason that we experience a mountaintop in the first place is because we've
actually put a draw on the anointing of God. I forget who taught me this but it says,
"There's only some stories I can tell at conferences that I can't tell on a Sunday morning. On a
On a Sunday morning, it hasn't cost anybody to show up.
Right.
Yeah, that makes sense.
So no faith level is activated.
It's just like, "No, go on, entertain me, do something."
But when you go to a conference that's cost you, I don't know, maybe a couple hundred
dollars, you've placed a couple hundred dollars value in your expectation.
So when you go, you're hungry.
Right.
And if you think about the events that we've gone to or the conferences or the schools
that we've done, it's a big shift.
You're like, "I'm taking time out of my work, my career.
I've maybe paid hundreds, if not thousands of dollars.
Now I want something, you know, so you set aside time.

And as a result, you kind of get what you paid for in a sense.
I wonder if there's a way that you can do that in normal everyday life.
Well, again, I think you probably asked the Holy Spirit to help you stay hungry and stay open.
But it's probably going to take more effort.
I remember when the Holy Spirit fell in our church one Sunday morning.
I wasn't actually there. So this is me talking about hearing it from Pastor Jeff, but Marcus
Hendrickson, who's our director of technical services at Grace and her, just a genius in
his own right, was speaking to Jeff, Pastor Jeff afterwards. And Jeff was wondering, "Do
we do another service tonight?" And so he said, "Markus, what do you think? Do you think we should
do another service tonight?" And Marcus said, "Well, I think..." And then just fell down and just began
to weep. And Jeff was like, Oh, my gosh, when it was happened, is everything okay? And when
they got Marcus off the floor, just I didn't hear what you said. And Marcus said, I think God's
worth more than our inconveniences. Yeah. And that's what I mean when you when you get excited
about what God is doing, you tend to prioritize him in a way that supersedes your inconveniences.
So if you think back to Toronto, it's not convenient to fly to the other side of the world. You think
about all the people who came from England or Australia or Korea or all over the world.
They're going and they're purposing in their heart to find and to be touched by God.
I wonder what it would be like if we woke up each day thinking, "God, I'm going to find you today.
I'm going to have an encounter with you today. I'm going to learn something new about you."
Right. It'd probably be a lot more fun.
I'm excited to try that this week.
Let's do it.
Do you think we have to wait until tomorrow morning?
Maybe, but that's just because it's just us awake now.
The things we tell people to do to keep what they've got,
as stuff that all of us can do immediately is things like cultivating a devotional life of
worship and prayer and journaling and rest. Dick Joyce I mentioned earlier,
who was the speaker at Grace on this morning, said something so profound. He said, "The disadvantage
of coming to a church like Grace Center is it's entirely possible that you can come once a week
and warm your hands on the fire of somebody else's intimacy and go away all week and not
notice that you're in luck. And I was like, Oh my God, so good. Because it's a danger you can confuse
anointing with momentum. Yeah. And realize that actually I'm sustaining my spiritual growth off
of other people's test of things, other people's revelation, not my own.
Yeah, or you can confuse time spent at church with time spent with God.
Oh, stop it. Now you're maddling.
Well, I went to church on Sunday and on Wednesday night. Oh,
what do you think is one of the the death knals to growth in God and teachableness?
Oh, for sure.
I think sometimes we've we think we've heard it all and somehow that comes across such a dangerous
trap isn't it it is it really is and it's what's kind of dishonoring and we how could how could
we possibly have heard it all what did david campbells he taught the second or something about that
he said whenever you hear something that you've heard before all gods doing is building a stronger
wall. So he said, you know, a brick layer just puts the same type of bricks on top of the other
bricks. And it just builds a wall, a taller wall. And so he was talking about how God lays
precept upon precept upon precept. That's the fun thing about listening to different people teach
the same thing. So you could listen, for example, David Wagner teach on the introduction to prophetic
ministry, and you could listen to Gary Morgan, and you could listen to James Goll, and you could
listen to John Paul Jackson and they might be sharing much of the same wisdom and revelation,
but they're all going to have completely different perspectives, completely different nuggets,
completely different insights on the same information.
Yeah.
And then you get to kind of build your understanding from there on the stuff that God impacts you
with out of what they've taught.
I speak to Gary Morgan this weekend and as Gary always does, this brilliant saying is
the danger that you can confuse knowledge with knowing.
And he said, "A lot of people are content
to fill their head with knowledge,
but it's not the same as knowing,
you're having lived it, having an experience."
- Right.
- And that's a big trap.
I thought the other trap is isolation, you know,
withdrawing.
- Yeah.
- So we see that a lot.
Sometimes our students are, you know,
it's a pressure cooker being at the school.
- Yeah.
we provide a very intentional community.
And for whatever reason, and I get it, you know, if you're of a personality, we're like, okay, I'm all people doubt.
I can understand the need to just rest and recharge.
But if you don't rejoin community, an isolation can be a breeding ground for sin.

You're the only one that is counseling you and you can end up way down the road before you realize
that you're on the wrong road.
One of the things I learned to do a while ago, I don't know who taught me this,
it was the whole thing of a relationship audit. The basis was look around at the people that
you're with and ask yourself, "Do I want to look like them?" Because if not, you might need to add
some healthy people to your relationships.
That's good, babe.
Yeah, I think it was David Monner who posted on Instagram that you become the average of the five people you hang around with most.
Which I don't know if it's true or not, but there's certainly the element, the birds of a feather flock together.
So it's just one of the things we encourage all our students and I'd encourage all our listeners is be plugged into a local church.
Yeah.
Be done just to attend a local church be part of that church serve because truly you only get to keep what you give away.
Yeah.
And that's how you grow to, how you continue to grow.
Think as I'm thinking about, you know, obviously having
graduated year one and even I think how many year one students
have we graduated to date something like 300.
Okay.
I just, I would, if you're listening, I'd love to encourage
you if you've graduated year one to pray about year two, because I
honestly think that the transformation is as significant coming
out of year two as it is out of year one. And just even the Bible piece and understanding,
you know, where things come from and why they're written the way they are and how do we properly
interpret it is gold. But then add to that, it's a whole bunch of different speakers,
it's leadership focused. And everybody I think is called to be a leader in their own arena.
So I don't think it's ever a loss to go and learn about how to lead people well when actually
we're called to lead in the body of Christ.
Well, the other thing is our school isn't a ministry school per se.
It's not training for ministry, it's training for life.
Right.
So we're all called to be leaders.
I mean, primarily we lead ourselves, but we'll be leaders of our family,
we'll be leaders of our department, our shift.
You know, this one of the things we try and stress our students is in the Lord's
eyes, there's no difference between the spiritual and the secular.
Yeah.
Once you're saved, you're in full-time ministry.
Yep.
But your harvest field might look like your office rather than a third world nation.
Yeah.
And your podium might be your lunch table speaking to your colleagues, not a church podium.
Right.
And so we try, especially in first and in second year, really focusing on transferable life skills that work wherever we, you know,
teach a week on how to handle humans because shock, you're surrounded by them and they don't come with a manual.
Yeah.
And people are weird.
I mean, if you think about it, the only normal person is the person you see in the mirror.
Am I right?
Um, sure.
I was going to say, well, sometimes I can see more than one person in the mirror,
depending on how many people are in the bathroom, but not the point.
So yes, if you've done first year, we'd love to encourage you to do second year.
And if you haven't done first year, we'd really encourage you.
There's so many great schools that we know of tons that are,
I'd encourage you to and research them all.
- Yeah, and pray and just say, Lord, you know,
here's the deal.
You can always invite God into the process, I hope you will.
And just ask him, Lord, would you make a way?
Like if there's a place that touches on your heart,
it doesn't, I'm not just talking about our school,
any school, you know, if you're like,
oh, I'd love to go to Bethel or I'd love to go to Toronto
or I'd love to, you know,
start talking to the Lord about that
and ask him to help you make a way.
And then take the next steps,
talk to whoever needs to be, talk to and get their input.
I remember when I was planning on going to Toronto.
And so again, like I just said, if you're thinking about doing YWAM, if you're thinking
about doing Bethel or worship you or Toronto School, the horror or any of these schools,
they're amazing.
It's an amazing opportunity to invest a relatively short amount of time into what God could do
next for you.
And you see rapid transformation in your life.
That's what I love about these things.
But I remember speaking to one of the elders in my church back in Scotland saying, "You know,
I don't know. I'm not sure if this is the Lord or not." And Morag said, "Aunty, you know what,
if it isn't, it's only five months of your life. You've just had an extended vacation in Toronto,
come back, pick up your life where you're left off." And I thought, "That's great wisdom." So
put in perspective. But yeah, pray about it. And then, so where you want to go, head towards that
direction and see what sort of favor opens up for you with your boss and all that sort of stuff.
Yeah. All right, I want to talk about donuts. Donuts.
And coffee. And coffee. That sounds like two of my favorite things.
We should talk about donuts and coffee. Well, here's the thing.
We, last week, recorded our 100th episode. This is episode 101.

We didn't get to do anything to celebrate it.
So here's what we've done. To celebrate 100 episodes,
we want to give away $100 worth of donuts or coffee or juice
or burgers and for those of you who are like, "Yeah, but we're not in Franklin. We can't
visit all these places. Don't worry. We've got you can move here. Oh, I mean, you can
move here." And in the meantime, we've got a hundred dollars worth of iTunes or Amazon
gift cards. We'll build it however you want to be blessed. So here's what we want to do
is we would love to hear from you about how we're doing on a podcast because actually
we record these episodes for you guys, for our listeners. So if you would take some
time just to tell us how we're doing, how we can serve you guys better. It would be a huge blessing
for us. April, the month that's just passed was the highest month of listeners we've ever had.
And we love that you tune in every week. And we really want to build a better podcast for you.
And in order to say thank you for listening, we want to give you an opportunity to get one of
these gift cards to be able to bless yourself, fuel yourself with the same stuff that fuels us.
is basically if you look at our credit card statement each month.
Yeah, you'd yeah, you would see five dollars.
Very great.
Honest.
So I'm sorry, you're up frankly, just.
Amazon and I too.
And so we want you to live some of that.
Oh dear.
Here you do it.
You go to Allen and AJ.com/survey.
That's Allen and AJ.com/survey.
Give us your honest feedback.
It can be anonymous if you prefer, but if you want a chance to win one of those
a hundred dollars worth of our favorite things. At the end of the survey, you have an opportunity
to give us your email address. And if you get picked at random, you'll have a chance
to win the stuff that fuels this podcast. For a link to that survey or for anything that
we mentioned in this week's episode, head over to alanonaj.com/101.

We know that there's people that listen from all over the world and we just want to say
thank you for tuning in.
So if you could go over and fill out that survey, that would be awesome.
And we look forward to talking to you next week.
[music]
Life, communication, tacos and video games
Paleotronuts and the kindness of God
The things we deal with every day
From Franklin, Tennessee
They are just like you and me
Alan, and AJ
Keeping up with the Joneses, keeping up with the Joneses
Sharing their life, experience it
Keeping up with the Joneses, keeping up with the Joneses
They talk about faith in God
And everything under the sun
If you are a human being
There's something here for everyone
(gentle music)
[ Silence ]


I've recently discovered Om which I think is a beautiful example of why FP matters in modern day computing.
Basically what Om showed was that by using immutable data for state in React.js one could easily outperform similar apps written in OOP style. The reason why it is so much faster is that component should update only has to check for referential equality instead of deep equality. This is a much more efficient way to trigger updates.
Om uses constructs similar to lenses and zippers to easily modify state (they call them cursors) which is extremely cool.
Haskell has a strong lens implementation (we kinda coined that term, didn't we? ;-)) and that's why I started wondering wether I could port Om (or React) to Haskell.
That way I can use my favorite language to build robust and super fast web applications. A dream come true.
So yeah. Here we go. it's time to build Hom! A haskell version of Om! (I'm kind of excited :-))
I'm Considering several options for Haskell->JS conversion. The following Pros and Cons are constructed from first impressions I got from skimming documentations so they might be incorrect. Please correct me when one of the pros or cons is wrong!
GHCJS
Pros
- Fully compactible with all GHC packages
- straightforward FFI
Cons
- very large runtime system
- packages draw in a lot of dependencies, creating huge generated code
Fay
Pros
- Small runtime system
- Small generated code
- Pretty darn fast
- Great FFI.
Cons
- No typeclasses so no Lenses. Kinda defeats the purpose of choosing haskell in the first place
Haste
Pros
- Compactible with most GHC-Compactible packages
- Smaller runtime system than GHCJS
- Good concurrency constructs
Cons
- Not sure how good the FFI is. What I've seen so far looked a bit clunky compared to UHCJS but maybe I need to get a bit more familiar with it.
UHCJS
Pros
- Very extensive javascript FFI. probably the best I've seen.
- Maintained by my university (Not really a pro. just exciting)
Cons
- Doesn't support GHC. UHC is a different standard. I think it supports upto haskell2010 though
I think I will go for Haste for now. Though UHCJS sounds really attractive as well to be honest. Fay is just a no-go because I want the sexy lens library!
Next time I'm gonna work out some API design decisions etc. The problem is I really don't have a lot of time to start coding yet because of university work. I really want to start building this library because I want it so bad!
Any feedback is appreciated. Also if someone is already working on something similar to this, let me know.


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SphinxWrapper()
- Constructor for class crawl.
SphinxWrapper
start()
- Method in class crawl.
SphinxWrapper
V
valueOf(String)
- Static method in enum crawl.
DomainMode
Returns the enum constant of this type with the specified name.
values()
- Static method in enum crawl.
DomainMode
Returns an array containing the constants of this enum type, in the order they are declared.
visit(Page)
- Method in class crawl.
SphinxWrapper
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Processing a large tensor by chunking¶
-
dlutils.
block_process_2d
(data, func, block_size=512, overlap=32, intermediate_as_double=False)[source]¶ Applies function to the given 4-dimensional tensor by chucking it in 2 dimensions and processing each chunk separately.
Input data is split into chuck across last two dimension. If input data is represented as NCHW, chucking will occur in HW space. Size of chunks and overlap can be modified. Overlap tells how much chunks should overlap.
Overlapping regions will be interpolated linearly/bilinearly between chunks.
Note
Type of data in tensor data is expected to be float-point one (either float or double)
- Parameters
- Returns
Result of the function func applied to input data
- Return type
torch.Tensor or list[torch.Tensor]
Example
def f(x): assert x.shape[2] <= 64 assert x.shape[3] <= 64 return x * x + x * x x = torch.ones(3, 3, 512, 512, dtype=torch.float32) r = dlutils.block_process_2d(x, f, block_size=32, overlap=8)


Marshall Bowers & Matthew Wallace
Computer Science
Address:
West Chester, PA
Phone:
555-5555
Fax:
867-5309
Current Classes:
Game Development
Hobbies & Interests
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SRC-related proto-oncogenes and transcription factors in primary human T cells: modulation by cyclosporin A and FK506.
Abstract
Activation of T lymphocytes induces transcription of genes encoding for lymphokines. Interleukin-2 (IL-2) gene expression is controlled transcriptionally by the cooperative activity of specific trans-activating factors that bind to the IL-2 enhancer. Cyclosporin A (CsA) and FK506 inhibit the production of IL-2 in T lymphocytes at the level of gene transcription. A member of the src gene family, the lymphocyte-specific protein tyrosine kinase, p56lck, has been implicated in IL-2 production. CsA was found not to inhibit lck gene expression, nor the activity of the lck gene product. However, CsA and FK506 inhibit the appearance of DNA binding activity of factors that bind to the NF-AT and AP-1 sites in the IL-2 enhancer. Since the induction of NF-AT and AP-1 is induced by the same stimuli that stimulate IL-2 production, these results indicate that the immunosuppressant action of CsA and FK506 is exerted at the level of these trans-activating factors.


Intro to Whiteboarding
Projected Time
45-60 minutes
- 20 minutes for Lesson
- 15 minutes for Check for Understanding
Prerequisites
Motivation
Whiteboarding and code challenges are used to determine a candidate’s ability to problem solve and break down difficult problems into smaller pieces.
It is helpful to practice brainstorming multiple solutions to a problem, talking through your thinking process, and consider complications before beginning to write any code. Whiteboarding is a skill that improves through practice; it has more to do with confidence than knowledge.
Code challenges are great to practice because they can be your golden ticket into any tech company. It gives you the confidence to succeed and it wows the interviewers with your impressive coding ability!
White-boarding is a practice performed in virtually all companies. It is frequently a part of an on-site interview, and is a skill that every developer should learn to help convey clearly their ideas and designs to colleagues and stakeholders. It is so important that Google has a product to support collaborative white-boarding (https://gsuite.google.com/products/jamboard/)
Objectives
Participants will be able to:
- Understand what interviewers are looking for during a code challenge
- Ask the right clarifying questions about their challenge
- Plan their solution before starting to code
- Describe the parts of the code they are writing, and the reasons for them
- Test their own functions
- Find resources for further learning
Specific Things to Learn
- Whiteboarding: Why and how we do it
- Overview of Whiteboarding
- Think
- Plan
- Code
- Test your code
Materials
Common Mistakes / Misconceptions
“I need to write code down as quickly as possible, since I only have X amount of time to solve the problem.” Interviewers generally care more about how you approach technical problems, than about how quickly you can write code. Generally, brainstorming and making sure you think through any potential pitfalls at the beginning, will make writing the code much easier and faster.
“I must solve the problem completely on my own. My interviewers will think I’m a bad coder if I ask for help.” Interviewers have generally seen many people attempt to solve their problem. While directly asking for help may not be good, if you verbalize your current ideas, interviewers will generally guide you in the direction they want you to go.
“I know my first idea is a poor solution. I should keep it to myself until I think of a better solution, otherwise the interviewer will think I’m a bad programmer.” It’s always better to mention your first few ideas for how to solve a problem, even if you think they may not be optimal. Verbalizing why they may not be optimal, shows the interviewer that you do understand time/space complexity and that you can think through edge cases.
“I don’t think well verbally. I prefer to think inside my head, then share my final result.” Interviewers always prefer for you to think out loud, so that they can follow your thought process. Practice thinking out loud, and it will get easier!
Lesson
What interviewers are looking for
- Can you take requirements and write neat, maintainable code?
- Can you communicate your thoughts effectively?
- Do you have an understanding of coding techniques?
- Can you come up with other approaches and talk about tradeoffs?
- How do you work under pressure?
- Can you work well with others? Would they want to work with you?
Think, Plan, Code, Test
- Think
- Before writing or typing, think about your approach. Does this problem feel familiar? What techniques come to mind?
- Write down the challenge, and ask questions at an in-person whiteboarding to be sure you’re clear about the expectations.
- Feel free to draw pictures or list things to visualize the process the input would go through in your function. If you comment your thoughts, you can refer to them later.
- Plan
- Jot down a strategy for how you will solve the problem.
- Then, arrange your plan into a step-by-step process for yourself.
- This stage will actually help you realize which plans will not work before you’re knee deep in code! Interviewers also like to see how you reason with why some approaches are good and some are not.
- Code
- If your plan seems sound, start coding!
- If you can think of multiple ways to do it, pick the easiest one to start with. You can improve it later if you have extra time.
- Test
- Prove that it works with a test. Or disprove it ;)
- On a computer: Type a testing function Have the test function call your function with a new argument, and have it return “ok” or “fail”
- On a board: talk through a test example. Write an input example, and walk it through the function’s process and discuss if the result is what you expected.
Things to Remember
- Practice on paper, whiteboards, and on your computer
- Don’t rush!! If you focus your energy and time on the planning stage, the rest will fall into place. Feel free to ask for a minute or two to think.
- Did your test fail? Congratulations, you’re normal. Use console logs to make sure each step is doing what you expect so you can track down the problem. While coding the example in the slides, my test failed and I realized I was just console.logging the function result instead of returning it.
- Have extra time? Look at your function and ask if you can improve it.
- Talking while coding feels unnatural, until you’ve done it 20 times. Start practicing now!
Independent Practice
- Starting next week, you will be doing a practice code challenge every day. Speak out loud or write comments about your thought process as you plan and then write your function.
- Once a week, find a partner to be your “interviewer” as you solve the code challenge. Their only job is to listen and ask a few questions about your choices and if you can improve your solution. It will feel awkward for a while; the goal is to get used to it before you start real interviews in a few months.
Supplemental Resources
Check for Understanding
- What is Whiteboard coding?
- Mention some steps you would follow during a whiteboarding interview.
- How will you organize your thoughts on the whiteboard
- Are whiteboarding interviews the best choice?


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