check if 1 array contains another array elements one by one, react code example

Example 1: javascript check if elements of one array are in another

const found = arr1.some(r=> arr2.includes(r))

Example 2: check if array values exists in another array

$result = !empty(array_intersect($people, $criminals));

Example 3: check if array exists in another array javascript

const found = arr1.some(r=> arr2.indexOf(r) >= 0)