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Nodejs Event Loop
...ystem to get their operability.
Those which are are ready for I/O in a non-blocking mode, are picked up, I/O performed, and their callbacks issued. One after the other.
Those which are not yet ready (for example a socket read, for which the other end point hasn't written anything yet) will continued...
Accessing @attribute from SimpleXML
...ode. You can then var_dump the return value of the function.
More info at php.net
http://php.net/simplexmlelement.attributes
Example code from that page:
$xml = simplexml_load_string($string);
foreach($xml->foo[0]->attributes() as $a => $b) {
echo $a,'="',$b,"\"\n";
}
...
How can I strip all punctuation from a string in JavaScript using regex?
...n (such as curly quotes, em-dashes, etc), you can easily match on specific block ranges. The General Punctuation block is \u2000-\u206F, and the Supplemental Punctuation block is \u2E00-\u2E7F.
Put together, and properly escaped, you get the following RegExp:
/[\u2000-\u206F\u2E00-\u2E7F\\'!"#$%&a...
How to deal with a slow SecureRandom generator?
... SecureRandom can be very slow. If it uses /dev/random on Linux, it can block waiting for sufficient entropy to build up. How do you avoid the performance penalty?
...
How do I change the color of radio buttons?
... background-color: #d1d3d1;
content: '';
display: inline-block;
visibility: visible;
border: 2px solid white;
}
input[type='radio']:checked:after {
width: 15px;
height: 15px;
border-radius: 15px;
top: -2px;
...
How to vertically center a inside a div? [duplicate]
... element in the parent as well? Since the child's display isn't an inline-block anymore, the parent's "text-align: center;" css no longer works.
– jnel899
Jun 20 '19 at 13:49
...
How using try catch for exception handling is best practice
...hat exception handling should never hide issues. This means that try-catch blocks should be extremely rare.
There are 3 circumstances where using a try-catch makes sense.
Always deal with known exceptions as low-down as you can. However, if you're expecting an exception it's usually better practi...
WaitAll vs WhenAll
...
Task.WaitAll blocks the current thread until everything has completed.
Task.WhenAll returns a task which represents the action of waiting until everything has completed.
That means that from an async method, you can use:
await Task.Whe...
filtering NSArray into a new NSArray in Objective-C
...
NSPredicate is dead, long live blocks! cf. my answer below.
– Clay Bridges
Oct 19 '11 at 23:09
...
How to download a file from server using SSH? [closed]
...ote/dir/foobar.txt /local/dir
From: http://www.hypexr.org/linux_scp_help.php
share
edited Mar 14 '15 at 9:31
Marek Grzenkowicz
...