Filter/Map

Introduction

Built-in javascript object.

• Author: Built-in javascript function

Usage

Run function for each element

arr.forEach(function(element, index, arr) {
    //
}, scope);

Filter elements

Creates a new array with all elements that pass the test function.

var result = arr.filter(function(element, index, arr) {
    return true; // false
}, scope);

Find one element

var element = arr.find(function(element, index, arr) {
    return true; // false
}, scope);

Map elements to a new array

var newArray = arr.map(function(element, index, arr) {
    return newElement;
}, scope);