js array elem in another array code example

Example 1: javascript array includes another array

const array1= ["cheese", "dough", "sauce", "pepperoni"]
const array2= ["mozzarella", "peppers", "chicken", "cheese"]

const isIncluded =  array1.some(value => array2.includes(value))
// true

const values = array1.filter(value => array2.includes(value))
// "cheese"

Example 2: return elements of an array from another array javascript

var toBeFiltered = [1,2,3,4,5,6];
var elements = [6,3,2];
var filteredElements = toBeFiltered.filter(
    function(e) {
        return this.indexOf(e) >= 0;
    },
    elements
);

console.log(toBeFiltered);
console.log(elements);
console.log(filteredElements);