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Check if a JavaScript string is a URL
...(#[-a-zd_]*)?$/: Invalid group Google Chrome (Version 30.0.1599.101) (Mac OS X: 10.8.5)
– dr.dimitru
Oct 19 '13 at 13:37
10
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Is there an easy way to create ordinals in C#?
...blic static string AddOrdinal(int num)
{
if( num <= 0 ) return num.ToString();
switch(num % 100)
{
case 11:
case 12:
case 13:
return num + "th";
}
switch(num % 10)
{
case 1:
return num + "st";
case 2:
...
How do I syntax check a Bash script without running it?
Is it possible to check a bash script syntax without executing it?
8 Answers
8
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Add a tooltip to a div
...pseudoelement of each [data-tooltip] object to be transparent, absolutely positioned and with data-tooltip="" value as content:
[data-tooltip]:before {
position : absolute;
content : attr(data-tooltip);
opacity : 0;
}
Define :hover:before hovering state of each [data-tool...
How do I simulate a low bandwidth, high latency environment?
...
For macOS, there is the Network Link Conditioner that simulates configurable bandwidth, latency, and packet loss. It is contained in the Additional Tools for Xcode package.
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How can I measure the actual memory usage of an application or process?
...ou insights about the amount of memory used, and, more importantly, about possible memory leaks in your program. The heap profiler tool of Valgrind is called 'massif':
Massif is a heap profiler. It performs detailed heap profiling by taking regular snapshots of a program's heap. It produces a grap...
Benchmarking small code samples in C#, can this implementation be improved?
...
I'd propose you to pass iteration count to the Action, and create the loop there (possibly - even unrolled). In case you're measuring relatively short operation this is the only option. And I'd prefer seeing inverse metric - e.g. co...
Smallest data URI image possible for a transparent image
...ample, if you have an <img> and you use the tiniest transparent GIF possible, it works fine, however, if you then want your transparent GIF to have a background-image, then this is impossible. For some reason, some GIFs such as the following prevent CSS backgrounds (in some browsers).
Shorte...
How do you get git to always pull from a specific branch?
...with several different projects. In each project, I always git clone [repository] and from that point, can always git pull , so long as I don't have outstanding changes, of course.
...
How can I change the color of my prompt in zsh (different from normal text)?
...fferent escape sequences give you different results, from absolute cursor positioning, to color, to being able to change the title bar of your window, and so on.
For more on escape sequences, see the wikipedia entry on ANSI escape codes
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