ArrayMap.js

var array = [1, 2, 3, 4];

//Imperative method
var newArray = [];
for (var i = 0; i < array.length; i++) {
    var temp = array[i];
    temp = temp + 1;
    newArray.push(temp);
}
console.log(newArray); //[2, 3, 4, 5]

//Functional method
var newerArray array.map((element) => {
    return element + 1;
});
console.log(newerArray); //[2, 3, 4, 5]