const array1 = ['a', 'b', 'c']; for (const element of array1) { console.log(element); }
let arr = ['el1', 'el2', 'el3']; arr.addedProp = 'arrProp'; // elKey are the property keys for (let elKey in arr) { console.log(elKey); } // elValue are the property values for (let elValue of arr) { console.log(elValue) }
const array = [1,2,3,4,5];const evenNumbers = array.filter(function(elem) { // expressions that return 'true' are retained return elem % 2 == 0;});