/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

0 vote107 views1 answer
Theattachedfile“stdData.csv”containsdifferentmeasurementsfromfour sensors. Themeasurementsaretakenmanytimesfordifferenttests
TypeScript
8 votes203 views2 answers
Typescript react elements
TypeScript
1 vote96 views1 answer
Why does the Circum-Pacific belt of earthquakes coincide with the Pacific ring of fire
TypeScript
0 vote124 views1 answer
Typescript assert non null
TypeScript
0 vote93 views1 answer
Highcharts turbothreshold not working
TypeScript
0 vote94 views1 answer
Add bullet points in text widget flutter
TypeScript
1 vote109 views1 answer
Google sheets concatenate
TypeScript
0 vote99 views1 answer
Number validation in typescript
TypeScript
0 vote99 views1 answer
The Effects of Boredom, Loneliness, and Distress Tolerance on Problem Internet Use Among University Students
TypeScript
0 vote103 views1 answer
Google sheets mode text
TypeScript