/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 vote178 views1 answer
Remove &nbsp from string in typescript
TypeScript
-1 vote211 views1 answer
What are the components of http request
TypeScript
-1 vote248 views1 answer
Git command to check for any conflicts between new and old versions on your repository
TypeScript
4 votes174 views1 answer
Ionic toast
TypeScript
0 vote186 views1 answer
How should a developer write unit tests for a private method in an apex class
TypeScript
1 vote176 views1 answer
Material ui circular progress coor
TypeScript
0 vote172 views1 answer
Mat-nav-list' is not a known element angular 9
TypeScript
2 votes165 views1 answer
How to get index for ngfor
TypeScript
2 votes179 views2 answers
Singleton design pattern typescript
TypeScript
30 votes186 views6 answers
Install typescript using npm
TypeScript