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How to tell if a JavaScript function is defined
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typeof callback === "function"
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How do I remove the file suffix and path portion from a path string in Bash?
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This is probably the most flexible of all the answers posted, but I think the answers suggesting the basename and dirname commands deserve some attention as well. They may be just the trick if you don't need any other fancy pattern matching.
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What does default(object); do in C#?
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For Nullable<T> it returns the empty (pseudo-null) value (actually, this is a re-statement of the first bullet, but it is worth making it explicit)
The biggest use of default(T) is in generics, and things like the Try... pattern:
bool TryGetValue(out T value) {
if(NoDataIsAvailab...
How do I prevent a parent's onclick event from firing when a child anchor is clicked?
...er catches it.
There are two solutions to this is to check to see who actually originated the event. jQuery passes an eventargs object along with the event:
$("#clickable").click(function(e) {
var senderElement = e.target;
// Check if sender is the <div> element e.g.
// if($(e.ta...
When is it better to use an NSSet over an NSArray?
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Thanks for your edit @Zaheer, but it was actually invalid. I wasn't adding primitives. I was adding literals.
– James Webster
Feb 24 '14 at 8:41
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'POCO' definition
...objects shouldn't have.
EDIT - as other answers have stated, it is technically "Plain Old CLR Object" but I, like David Arno comments, prefer "Plain Old Class Object" to avoid ties to specific languages or technologies.
TO CLARIFY: In other words, they don’t derive from
some special base class...
oh-my-zsh slow, but only for certain Git repo
...oing this in global settings for vagrant virtualbox vms with --global is really handy (slow in guest, fast on host) as described here: stackoverflow.com/a/40943155/1092815 <3
– GabLeRoux
Apr 6 '17 at 14:53
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Iterate over a Javascript associative array in sorted order
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You cannot iterate over them directly, but you can find all the keys and then just sort them.
var a = new Array();
a['b'] = 1;
a['z'] = 1;
a['a'] = 1;
function keys(obj)
{
var keys = [];
for(var key in obj)
{
if(obj.hasOwnProperty(key))
{
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Create a custom callback in JavaScript
All I need to do is to execute a callback function when my current function execution ends.
10 Answers
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How to extract base URL from a string in JavaScript?
...[2]; I think Rafal's example just omitted the "http://" that is present in all of the strings that I'm processing, in which case the pathArray[2] is the one you need. Without the "http://" prefix, pathArray[0] would be the one. Thanks again.
– Bungle
Sep 14 '09...