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How to test valid UUID/GUID?
...9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$/i
...ensures you have a canonically formatted UUID that is Version 1 through 5 and is the appropriate Variant as per RFC4122.
NOTE: Braces { and } are not canonical. They are an artifact of some systems and usages.
Easy to modify the above regex to meet ...
IIS7 Cache-Control
... thought would be fairly simple. Get IIS 7 to tell clients they can cache all images on my site for a certain amount of time, let's say 24 hours.
...
Pass a JavaScript function as parameter
... executing it first.
Here is an example:
function addContact(id, refreshCallback) {
refreshCallback();
// You can also pass arguments if you need to
// refreshCallback(id);
}
function refreshContactList() {
alert('Hello World');
}
addContact(1, refreshContactList);
...
Use jQuery to get the file input's selected filename without the path
...plit('\\').pop(); on Win 7, Ubuntu 11.04 and Mac OS X and it works fine on all of them.
– Alex
Mar 8 '12 at 14:57
3
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What does the keyword Set actually do in VBA?
...ould be correct (and it would be in C), but Set A = B | A = &B; is actually correct in VBA (and it would fail in C). In VBA, A = B and Set A = B are BOTH equivalent to C's A = B;! The distinction happens somewhere else.
– Niko O
May 25 at 8:18
...
Why are empty strings returned in split() results?
...
I was shocked to discover that curly quotes are actually valid in Python...but, but...how? The docs don't seem to mention this.
– Tim Pietzcker
Oct 8 '12 at 11:18
...
git pushes with wrong user from terminal
...roblem at work. The builtin git that ships with mac or comes when you install xcode caches git credentials in keychain. The fix for me was to:
start keychain access (start spotlight via cmd + space, type keychain, press enter)
Under keychains on the upper left, select "login"
Under category on t...
Remove directory which is not empty
...
There is a module for this called rimraf (https://npmjs.org/package/rimraf). It provides the same functionality as rm -Rf
Async usage:
var rimraf = require("rimraf");
rimraf("/some/directory", function () { console.log("done"); });
Sync usage:
rimr...
What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
...ompression: Lossless and Lossy.
Lossless means that the image is made smaller, but at no detriment to the quality.
Lossy means the image is made (even) smaller, but at a detriment to the quality. If you saved an image in a Lossy format over and over, the image quality would get progressively wor...
Vim multiline editing like in sublimetext?
...d asd" asd asd;
asd "asd asd" asd asd;
asd "asd asd" asd asd;
:norm[al] allows you to execute normal mode commands on a range of lines (the '<,'> part is added automatically by Vim and means "act on the selected area")
^ puts the cursor on the first char of the line
w moves to the next word...