Nodejs Array Flatten flatten()

Method Source Code

Array.prototype.flatten = function () {
    var thisArr = this;
    var newArr  = [];
    recursive(thisArr);//w  w w.ja v a2 s  .  c om

    function recursive (arr) {
        for (var i = 0; i < arr.length; i++) {
            if (arr[i] instanceof Array) {
                recursive(arr[i]);
            } else {
                newArr.push(arr[i]);
            }
        }
    }

    return newArr;
};

var array = [1, 2, 3, 4];
console.log(array.flatten());

var array = [1, 2, [3, 4], [5, 6]];
console.log(array.flatten());
console.log(array);

var array = [0, ["string", "values"], 5.5, [[1, 2, true], [3, 4, false]], 10];
console.log(array.flatten());

Related

1. flatten()

   Array.prototype.flatten = function() {
       return this.inject([], function(array, value) {
         if (DiaFluxUtils.isArray(value))
           return array.concat(value.flatten());
         array.push(value);
         return array;
       });
   

2. flatten()

   Array.prototype.flatten = function(){
     return this.reduce(function(flat, val, i, hilly){
       Array.isArray(val) ? flat.concat(val.flatten()) : flat.concat(val);
     }, []);
   

3. flatten()

   Array.prototype.flatten = function () {
       var result = [];
       function flatten(elements, output) {
           elements.forEach(function (element) {
               if (!(typeof element === 'object' || typeof element === typeof Array)) {
                   output.push(element);
               else {
                   flatten(element, output);
   ...
   

4. flatten()

   Array.prototype.flatten = function() {
       return Array.prototype.concat.apply([], this);
   

5. flatten()

   Array.prototype.flatten = function() {
       var resultArray = [];
       function getValues(array) {
           var i;
           for (i = 0; i < array.length; i += 1) {
               var value = array[i];
               if (Array.isArray(value)) {
                   getValues(value);
               } else {
   ...
   

6. flatten()

   "use strict";
   Array.prototype.flatten = function () {
       var result = [];
       function getValues(array) {
           var i;
           for (i = 0; i < array.length; i++) {
               var value = array[i];
               if (Array.isArray(value)) {
                   getValues(value);
   ...
   

7. flatten()

   var array;
   Array.prototype.flatten = function () {
       'use strict';
       var resultArray = [];
       function getValues(array) {
           var i,
               value;
           for (i = 0; i < array.length; i += 1) {
               value = array[i];
   ...
   

8. flatten()

   Array.prototype.flatten = function() {
       var resultArray = [];
       function getValues(array) {
           var i;
           for (i = 0; i < array.length; i += 1) {
               var value = array[i];
               if (Array.isArray(value)) {
                   getValues(value);
               } else {
   ...
   

9. flatten()

   Array.prototype.flatten = function () {
       var arrayResult = [];
       flatten(this);
       function flatten(array) {
           var length = array.length;
           for (var i = 0; i < length; i++) {
               var element = array[i];
               if (Array.isArray(element)) {
                   flatten(element);
   ...