/TypeScript/Keys of array exist in array

Keys of array exist in array

Php key in array exists

<?php
$search_array = array('first' => null, 'second' => 4);

// returns false
isset($search_array['first']);

// returns true
array_key_exists('first', $search_array);
?>

Source: php.net

Keys of array exist in array

function findKey($array, $keySearch)
{
    foreach ($array as $key => $item) {
        if ($key == $keySearch) {
            echo 'yes, it exists';
            return true;
        } elseif (is_array($item) && findKey($item, $keySearch)) {
            return true;
        }
    }
    return false;
}

Source: stackoverflow.com

Similar codes

1 vote348 views2 answers
Change execution policy
TypeScript
0 vote274 views1 answer
Angular api rest
TypeScript
0 vote331 views1 answer
Sql concepts interview questions
TypeScript
0 vote298 views3 answers
How to get particular key value from array of objects in javascrip
TypeScript
0 vote263 views1 answer
Online doctor appointments in pakistan
TypeScript
0 vote290 views1 answer
What do HTTP requests and responses look like?
TypeScript
3 votes363 views3 answers
Get first day of month javascript moment
TypeScript
0 vote265 views1 answer
File reader with promise
TypeScript
1 vote315 views1 answer
React typescript input set focus dinamically
TypeScript
0 vote303 views1 answer
Mat stepper dont clickable
TypeScript