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RegEx to extract all matches from string using RegExp.exec
...tern), if pattern has the global flag g, will return all the matches as an array.
For example:
const str = 'All of us except @Emran, @Raju and @Noman was there';
console.log(
str.match(/@\w*/g)
);
// Will log ["@Emran", "@Raju", "@Noman"]
...
How do you get the width and height of a multi-dimensional array?
I have an array defined:
6 Answers
6
...
Possibility of duplicate Mongo ObjectId's being generated in two different collections?
...hrough a dataset and attempting to inject the data into a collection.
The array that holds the injection data must be explicitly reset on each iteration - even if you aren't specifying the _id value. For some reason, the INSERT process adds the Mongo _id to the array as if it were a global variable...
Why would you use an ivar?
... test setup is really simple: Create 1 Mio random accounts, add them to an array and sort that array. That's it. Of course, there are two arrays, one for AccountA objects and one for AccountB objects and both arrays are filled with identical accounts (same data source). We time how long it takes to ...
Function return value in PowerShell
... to a variable and if more than the return value is returned the var is an array and the return value will be the last item in the array.
– DaSmokeDog
Feb 21 '19 at 19:08
1
...
Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]
..., Groovy, and
Swift, is introduced to ease nil handling as obj&.foo. Array#dig and
Hash#dig are also added.
This means as of 2.3 below code
account.try(:owner).try(:address)
can be rewritten to
account&.owner&.address
However, one should be careful that & is not a drop in...
How to remove array element in mongodb?
Here is array structure
5 Answers
5
...
How to initialize a two-dimensional array in Python?
... about [foo] * 10: This means that this wouldn't work if you're filling an array with random numbers (evaluates [random.randint(1,2)] * 10 to [1] * 10 or [2] * 10 which means that you get an array of all 1s or 2s, instead of a random array.
– Tzu Li
Jun 6 '19 a...
Creating anonymous objects in php
...
$obj->aProperty = 'value';
You can also take advantage of casting an array to an object for a more convenient syntax:
$obj = (object)array('aProperty' => 'value');
print_r($obj);
However, be advised that casting an array to an object is likely to yield "interesting" results for those arr...
关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
...t = 60;
private static $maxconns = 1024;
private static $connections = array();
function SelectSocketServer($port)
{
global $errno, $errstr;
if ($port < 1024) {
die("Port must be a number which bigger than 1024/n");
}
$socket = socket_create_listen($port);
if (!$so...