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JavaScript OR (||) variable assignment explanation
...that the result of the expression is not cast to boolean. You cannot later do if( true == f ). If an integer was stored in f, then this test will always return false.
– user1115652
Aug 1 '13 at 2:11
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How to assert output with nosetest/unittest in python?
...same technique as some of the other answers by temporarily replacing sys.stdout. I prefer the context manager because it wraps all the bookkeeping into a single function, so I don't have to re-write any try-finally code, and I don't have to write setup and teardown functions just for this.
import s...
Is it possible to put CSS @media rules inline?
...rrectly determine the phone's screen width, so the only way I can think of doing this is to add background images of a div and use @media to determine the screen width and display the correct image.
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How to move the cursor word by word in the OS X Terminal
...th keys in order to re-execute the command again. I find it pretty lame to do this in Mac OSX Terminal, compare to the GNOME Terminal.
– Phương Nguyễn
Jun 1 '10 at 2:35
248
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startsWith() and endsWith() functions in PHP
...}
return substr( $haystack, -$length ) === $needle;
}
Use this if you don't want to use a regex.
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Benchmarking small code samples in C#, can this implementation be improved?
...d by the community, feel free to amend this its a community wiki.
static double Profile(string description, int iterations, Action func) {
//Run at highest priority to minimize fluctuations caused by other processes/threads
Process.GetCurrentProcess().PriorityClass = ProcessPriorityClass.H...
How to check for an undefined or null variable in JavaScript?
...properties , like someExistingObj.someUndefProperty. An undefined property doesn't yield an error and simply returns undefined, which, when converted to a boolean, evaluates to false. So, if you don't care about
0 and false, using if(obj.undefProp) is ok. There's a common idiom based on this fact:
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How to remove all CSS classes using jQuery/JavaScript?
... you didn't have jQuery, then this would be pretty much your only option:
document.getElementById('item').className = '';
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SQL WHERE condition is not equal to?
...
You can do like this
DELETE FROM table WHERE id NOT IN ( 2 )
OR
DELETE FROM table WHERE id <> 2
As @Frank Schmitt noted, you might want to be careful about the NULL values too. If you want to delete everything which is...
Disable same origin policy in Chrome
... when it first opens, which you can ignore.
From the chromium source:
// Don't enforce the same-origin policy. (Used by people testing their sites.)
const wchar_t kDisableWebSecurity[] = L"disable-web-security";
Before Chrome 48, you could just use:
chromium-browser --disable-web-security
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