javascript check if something is in array code example

Example 1: js check if array

Array.isArray([1, 2, 3]);	// true
Array.isArray('asdf');		// false

Example 2: javascript check if array is in array

var array = [1, 3],
    prizes = [[1, 3], [1, 4]],
    includes = prizes.some(a => array.every((v, i) => v === a[i]));

console.log(includes);