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How do you get a string to a character array in JavaScript?
...mehere)
const a = [...'????????????????'];
console.log(a);
Array.from
const a = Array.from('????????????????');
console.log(a);
RegExp u flag
const a = '????????????????'.split(/(?=[\s\S])/u);
console.log(a);
Use /(?=[\s\S])/u instead of /(?=.)/u because . does not matc...
When is CRC more appropriate to use than MD5/SHA1?
...ks fine for detecting random errors in data that might occur, for example, from network interference, line noise, distortion, etc.
CRC is computationally much less complex than MD5 or SHA1. Using a hash function like MD5 is probably overkill for random error detection. However, using CRC for any ki...
Check to see if a string is serialized?
...
I didn't write this code, it's from WordPress actually. Thought I'd include it for anybody interested, it might be overkill but it works :)
<?php
function is_serialized( $data ) {
// if it isn't a string, it isn't serialized
if ( !is_string( $d...
Error message Strict standards: Non-static method should not be called statically in php
...posed to do is set the object into a valid state. If you have to have data from outside the class to do that consider injecting it instead of pulling it. Also note that constructors cannot return anything. They will always return void so all these return false statements do nothing but end the const...
What is output buffering?
...rld'; // save to output buffer
$output = ob_get_clean(); // Get content from the output buffer, and discard the output buffer ...
$output = strtoupper($output); // manipulate the output
echo $output; // send to output stream / Browser
// OUTPUT:
HELLO WORLD
Examples: Hackingwithphp.com
...
Java - escape string to prevent SQL injection
...r. Dealing with SQL injection is one of those things you have to design in from the beginning; it's not something you can add easily later on.
– Cylon Cat
Nov 28 '09 at 16:52
2
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Fragment or Support Fragment?
I am developing an app that supports Android >= 4.0. It uses fragments from the android.app package. As I am facing problems with the older fragment implementation in 4.0, like this one , that are already fixed in the support library, I am considering switching back to the fragment implementation...
What is the global interpreter lock (GIL) in CPython?
...
Python's GIL is intended to serialize access to interpreter internals from different threads. On multi-core systems, it means that multiple threads can't effectively make use of multiple cores. (If the GIL didn't lead to this problem, most people wouldn't care about the GIL - it's only being ra...
How can I remove a key and its value from an associative array?
...e4");
To remove an element using the array key:
// To unset an element from array using Key:
unset($arr["key2"]);
var_dump($arr);
// output: array(3) { ["key1"]=> string(6) "value1" ["key3"]=> string(6) "value3" ["key4"]=> string(6) "value4" }
To remove element by value:
// remove an ...
VIM Disable Automatic Newline At End Of File
...now, the script itself:
#!/usr/bin/python
# a filter that strips newline from last line of its stdin
# if the last line is empty, leave it as-is, to make the operation idempotent
# inspired by: https://stackoverflow.com/questions/1654021/how-can-i-delete-a-newline-if-it-is-the-last-character-in-a-...