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Cloning an Object in Node.js
...._extend() function.
var extend = require('util')._extend;
var obj1 = {x: 5, y:5};
var obj2 = extend({}, obj1);
obj2.x = 6;
console.log(obj1.x); // still logs 5
Source code of Node's _extend function is in here: https://github.com/joyent/node/blob/master/lib/util.js
exports._extend = function(orig...
Empty set literal?
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541
No, there's no literal syntax for the empty set. You have to write set().
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Spring Data: “delete by” is supported?
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edited Nov 8 '19 at 5:36
answered May 18 '14 at 15:35
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Overflow Scroll css is not working in the div
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159
You are missing the height CSS property.
Adding it you will notice that scroll bar will appear...
How do I catch a PHP fatal (`E_ERROR`) error?
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Log fatal errors using the register_shutdown_function, which requires PHP 5.2+:
register_shutdown_function( "fatal_handler" );
function fatal_handler() {
$errfile = "unknown file";
$errstr = "shutdown";
$errno = E_CORE_ERROR;
$errline = 0;
$error = error_get_last();
i...
isset() and empty() - what to use
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145
It depends what you are looking for, if you are just looking to see if it is empty just use empt...
Format a datetime into a string with milliseconds
...Y-%m-%d %H:%M:%S.%f')[:-3]
>>>> OUTPUT >>>>
2020-05-04 10:18:32.926
Note: For Python3, print requires parentheses:
print(datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3])
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Why is it common to put CSRF prevention tokens in cookies?
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edited Dec 15 '17 at 10:15
Lutz Prechelt
26.4k55 gold badges4949 silver badges7171 bronze badges
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How to remove duplicate values from an array in PHP
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254
Use array_unique().
Example:
$array = array(1, 2, 2, 3);
$array = array_unique($array); // Ar...
Converting stream of int's to char's in java
...set instead.
Simply casting from int to char only works if you want ISO-8859-1, if you're reading bytes from a stream directly.
EDIT: If you are already using a Reader, then casting the return value of read() to char is the right way to go (after checking whether it's -1 or not)... but it's normal...