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Why .NET String is immutable? [duplicate]
...n third party API call to change your strings.
StringBuilder was added in order to address the one major disadvantage of immutable strings - runtime construction of immutable types causes a lot of GC pressure and is inherently slow. By making an explicit, mutable class to handle this, this issue i...
Difference between return and exit in Bash functions
...to determine how the script was forced to stop if called by another script etc. Enough on exit.
return when called will return the value specified to indicate the function's behavior, usually a 1 or a 0. For example:
#!/bin/bash
isdirectory() {
if [ -d "$1" ]
then
retu...
Fastest way to check if a string matches a regexp in ruby?
...remove anchors, try limiting searches, use wildcards vs. explicit matches, etc.
The Fruity gem is very useful for quickly benchmarking things, because it's smart. Ruby's built-in Benchmark code is also useful, though you can write tests that fool you by not being careful.
I've used both in many an...
How can I remove a key and its value from an associative array?
... loops depending on your array:
$arr[$key1][$key2][$key3]=$value1; // ....etc
foreach ($arr as $key1 => $values) {
foreach ($key1 as $key2 => $value) {
unset($arr[$key1][$key2]);
}
}
share
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Is there a way to create your own html tag in HTML5?
...et (think css reset) -
Example:
stack{display:block;margin:0;padding:0;border:0; ... }
STEP 2
To get it to work in old versions of Internet Explorer, you need to append this script to the head (Important if you need it to work in older versions of IE!):
<!--[if lt IE 9]>
<script&g...
SecurityException: Permission denied (missing INTERNET permission?)
...standard", non-rooted device with stock (or vendor like Samsung, HTC, Sony etc) ROM.
I do not want to crash...
Properly implemented permission management and/org blocking must deal with the fact that most apps may not be ready for the situation where access to certain features is both granted and...
How to change a span to look like a pre with CSS?
...
It's a good idea to do it this way in order to understand where these defaults come from.
– Diodeus - James MacFarlane
Oct 21 '08 at 15:07
2
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Algorithm to detect corners of paper sheet in photo
...ther than cartesian. In this way you can group lines by c and then by m in order to thin them out and by imagining the lines as extending across the whole image you'll find more useful intersections.
– Martin Foot
Jul 6 '11 at 10:13
...
Getting the name of a child class in the parent class (static context)
...lass
{
return new static();
}
public static function getClass() // Get static class
{
return static::class;
}
public function getStaticClass() // Non-static function to get static class
{
return static::class;
}
}
class Child extends Base
{
...
How to scp in Python?
...doesn't work outside linux-like systems, has issues with password prompts, etc.
– Foon
Feb 7 '17 at 16:23
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