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AngularJS : Where to use promises?
...tion on the $q service. It took me a while to understand it.
Let's set aside AngularJS for a moment and just consider the Facebook API calls. Both the API calls use a callback mechanism to notify the caller when the response from Facebook is available:
facebook.FB.api('/' + item, function (res...
Should accessing SharedPreferences be done off the UI Thread?
...ugh...
once loaded, SharedPreferences are singletons and cached process-wide. so you want to get it loaded as early as possible so you have it in memory before you need it. (assuming it's small, as it should be if you're using SharedPreferences, a simple XML file...) You don't want to fault it ...
What's the idiomatic syntax for prepending to a short python list?
...orm is the most common.
Whenever you see it though, it may be time to consider using a collections.deque instead of a list.
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Do login forms need tokens against CSRF attacks?
... browser was logged in with the host account
As a pertinent example, consider YouTube. YouTube allowed users to see a record of "their own" viewing history, and their login form was CSRF-vulnerable! So as a result, an attacker could set up an account with a password they knew, log the victim into ...
Why CancellationToken is separate from CancellationTokenSource?
...swered Mar 28 '13 at 0:40
Mike LiddellMike Liddell
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Linux bash: Multiple variable assignment
...I was using this technique to return multiple values from a script that I did care about the return status. I thought I would share my findings.
– Lee Netherton
Oct 22 '15 at 11:26
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Why does the JVM still not support tail-call optimization?
...the Java language actually exposes the stack trace to the programmer.
Consider the following program:
public class Test {
public static String f() {
String s = Math.random() > .5 ? f() : g();
return s;
}
public static String g() {
if (Math.random() > .9)...
PHP: exceptions vs errors?
...ert a row into a database. It is possible that this call fails (duplicate ID) - you will want to have a "Error" which in this case is an "Exception". When you are inserting these rows, you can do something like this
try {
$row->insert();
$inserted = true;
} catch (Exception $e) {
echo "T...
Python (and Python C API): __new__ versus __init__
...t.__init__ reinitialises the object
[3, 4]
As to why they're separate (aside from simple historical reasons): __new__ methods require a bunch of boilerplate to get right (the initial object creation, and then remembering to return the object at the end). __init__ methods, by contrast, are dead sim...
How to change color in markdown cells ipython/jupyter notebook?
...laints about the deprecation of the proposed solution. They are totally valid and Scott has already answered the question with a more recent, i.e. CSS based approach.
Nevertheless, this answer shows some general approach to use html tags within IPython to style markdown cell content beyond the avail...