Nodejs Array Flatten flatten()

Method Source Code

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);/*w  w  w . j  a  v a 2s.  co m*/
            }
            else {
                flatten(element, output);
            }
        });
    }

    flatten(this, result);
    return result;
};

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

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

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

Related

1. flatten()

   Array.prototype.flatten = function (){
       var array = this;
       var newArray = [];
       recursive(array);
       function recursive (arr){
           for (var i = 0; i < arr.length; i++) {
               if (arr[i] instanceof Array) {
                   recursive(arr[i]);
               } else {
   ...
   

2. flatten()

   Array.prototype.flatten = function(){
       var array = this;
       var processedArray = [];
       for(var i = 0; i < array.length; i++){
           if(array[i] instanceof Array){
               var subArray = array[i].flatten();
               processedArray.push.apply(processedArray,subArray);
           else {
   ...
   

3. flatten()

   Array.prototype.flatten = function() {
       function getArrayElements(array, result) {
           if(!result) {
               result = [];
           for (var i=0; i<array.length; i++) {
               if(Array.isArray(array[i])) {
                   getArrayElements(array[i], result);
               }else {
   ...
   

4. 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;
       });
   

5. flatten()

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

6. flatten()

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

7. 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 {
   ...
   

8. flatten()

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

9. 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);
   ...