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Does const mean thread-safe in C++11?
...:
[17.6.5.9/1]
This section specifies requirements that implementations shall meet to prevent data races (1.10). Every standard library function shall meet each requirement unless otherwise specified. Implementations may prevent data races in cases other than those specified below.
[17.6.5.9/3]
A C...
Java String array: is there a size of method?
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hi, how could we find the docs that list all the possible properties and functions of array object? I don't mean the Arrays object which is the only docs that I can find.
– GMsoF
Mar 28 '13 at 4:57
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Regex to test if string begins with http:// or https://
...s." (Duplicate characters are ignored.)
Try this:
^https?://
If you really want to use alternation, use this syntax instead:
^(http|https)://
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What is the explicit promise construction antipattern and how do I avoid it?
...){
return myPromiseFn(param+1); // much nicer, right?
}
Promises are all about making asynchronous code more readable and behave like synchronous code without hiding that fact. Promises represent an abstraction over a value of one time operation, they abstract the notion of a statement or expr...
Insert a line at specific line number with sed or awk
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mac users: with homebrew, brew install gnu-sed and then use this with gsed
– cwd
Jan 10 '15 at 17:58
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quick random row selection in Postgres
... make It sense to use a N less than SELECT COUNT(*)?, I mean, not use all the values in the table but only a part of them?
– Juan
Mar 14 '11 at 11:00
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How can I get the timezone name in JavaScript?
...ationalization API supports getting the user timezone, and is supported in all current browsers.
console.log(Intl.DateTimeFormat().resolvedOptions().timeZone)
Keep in mind that on some older browser versions that support the Internationalization API, the timeZone property is set to undef...
How to programmatically clear application data
...st). In order to do so, I need to clear the app data. This can be done manually in Settings/Applications/Manage Applications/[My App]/Clear data
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What, exactly, is needed for “margin: 0 auto;” to work?
...ple's heads:
The element must have a width that is not auto2
Note that all of these conditions must be true of the element being centered for it to work.
1 There is one exception to this: if your fixed or absolutely positioned element has left: 0; right: 0, it will center with auto margins.
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How to create and use resources in .NET
... Well, lucky us, C# makes this exceedingly easy.
There is a static class called Properties.Resources that gives you access to all your resources, so my code ended up being as simple as:
paused = !paused;
if (paused)
notifyIcon.Icon = Properties.Resources.RedIcon;
else
notifyIcon.Icon = Pro...