how to check if element is array javascript code example

Example 1: if object is array javascript

Array.isArray(object);

Example 2: js check if array

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

Example 3: 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);