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Test if string is a guid without throwing exceptions?
...0 good: 126,120 ticks
10,000 bad: 23,134 ticks
COM Intertop (Fastest) Answer:
/// <summary>
/// Attempts to convert a string to a guid.
/// </summary>
/// <param name="s">The string to try to convert</param>
/// <param name="value">Upon return will contain t...
How can I determine if a variable is 'undefined' or 'null'?
...
I'm trying to test if event is null in firefox and an error blocks the execution: "event is undefined"
– Entretoize
Sep 6 '18 at 10:32
...
Best branching strategy when doing continuous integration?
...rged to trunk, which you keep reasonably stable and passing all regression tests at all times. As you near the end of your release cycle and all feature branches merge, you stabilize and branch of a release system branch on which you only do stability bug fixes and necessary backports, while the tru...
jQuery .hasClass() vs .is()
...
Update:
I committed a test following a comment and four upvotes to very comment. It turns out that what I had said is the correct answer. Here is the result:
http://jsperf.com/hasclass-vs-is-so
The is is multi-purpose, you can for example do is(...
Where to put view-specific javascript files in an ASP.NET MVC application?
...
Controllers
-- Example
-- ExampleController.vb
Views
-- Example
-- Test.vbhtml
-- Test.js
Using the configuration steps given below, combined with the example structure above, the test view URL would be accessed via: /Example/Test and the javascript file would be referenced via: /Exampl...
iPad Web App: Detect Virtual Keyboard Using JavaScript in Safari?
...rd is shown, scrolling suddenly works. So I can set scrollTop, immediately test its value, and then reset it. Here's how that might look in code, using jQuery:
$(document).ready(function(){
$('input').bind('focus',function() {
$(window).scrollTop(10);
var keyboard_shown = $(wind...
What is C# analog of C++ std::pair?
...it like this:
Pair<String, int> pair = new Pair<String, int>("test", 2);
Console.WriteLine(pair.First);
Console.WriteLine(pair.Second);
This outputs:
test
2
Or even this chained pairs:
Pair<Pair<String, int>, bool> pair = new Pair<Pair<String, int>, bool>()...
How to compare software version number using js? (only number)
...lidPart(x) {
return (lexicographical ? /^\d+[A-Za-z]*$/ : /^\d+$/).test(x);
}
if (!v1parts.every(isValidPart) || !v2parts.every(isValidPart)) {
return NaN;
}
if (zeroExtend) {
while (v1parts.length < v2parts.length) v1parts.push("0");
while (v2par...
How to find all positions of the maximum value in a list?
...iciencies pointed out by @John Machin. For (2) I attempted to optimize the tests based on guesstimated probability of occurrence of each condition and inferences allowed from predecessors. It was a little tricky figuring out the proper initialization values for max_val and max_indices which worked f...
is_null($x) vs $x === null in PHP [duplicate]
...there is a time difference between using === and is_null(). Did some quick testing and got these results:
<?php
//checking with ===
$a = array();
$time = microtime(true);
for($i=0;$i<10000;$i++) {
if($a[$i] === null) {
//do nothing
}
}
echo 'Testing with === ', microtime(tru...