check if array contains value javascript es6 code example

Example 1: typescript check if element in array

your_array.includes(the_element)

Example 2: javascript element in array

var fruits = ["Banana", "Orange", "Apple", "Mango"];

var n = fruits.includes("Mango");

Example 3: see if array contains array javascript

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