Nodejs Array Flatten flatten()

Method Source Code

/**//from  w  w  w  .  ja va 2  s .  co m
 * http://stackoverflow.com/questions/27266550
 */
Array.prototype.flatten = function() {
  var toString = Object.prototype.toString;
  var arrayTypeStr = '[object Array]';

  var result = [];
  var nodes = this.slice();
  var node;

  if (!this.length) {
    return result;
  }

  node = nodes.pop();

  do {
    if (toString.call(node) === arrayTypeStr) {
      nodes.push.apply(nodes, node);
    } else {
      result.push(node);
    }
  } while (nodes.length && (node = nodes.pop()) !== undefined);

  result.reverse();
  return result;
}

Related

1. 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);
   ...
   

2. flatten()

   Array.prototype.flatten = function() {
       var flatten = function(items) {
           var flattened = [];
           items.forEach(function(item) {
               if (typeof item === "object") {
                   flatten(item).forEach(function (i) {
                       flattened.push(i);
                   });
               } else {
   ...
   

3. flatten()

   Array.prototype.flatten = function(){
     var flat_array = [];
     for(var i = 0; i < this.length; i++){
       if (this[i].constructor == Array){
         this[i] = this[i].flatten();
         flat_array = flat_array.concat(this[i]);
       else { flat_array.push(this[i]); }
     return flat_array;
   

4. flatten()

   Array.prototype.flatten = function() {
     var results = [];
     for (var i = 0, len = this.length; i < len; i++) {
       if (typeof this[i] == "object" && this[i].constructor === Array) {
         results = results.concat(this[i].flatten());
       } else {
         results.push(this[i]);
     return results;
   };
   Array.prototype.flatten = function() {
     var results = [];
     for (var i = 0, len = this.length; i < len; i++) {
       results = results.concat(Object.isArray(this[i]) ? this[i].flatten() : [this[i]]);
     return results;
   };
   Array.prototype.flatten = function() {
     return this.inject([], function(array, value) {
       return array.concat(Object.isArray(value) ?
         value.flatten() : [value]);
     });
   };
   

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()

   Array.prototype.flatten = function() {
       var originalArray = this,
           newArray = [],
           i = 0,
           j = 0,
           element,
           temp;
       for (i = 0; i < originalArray.length; i+=1) {
           element = originalArray[i];
   ...
   

7. flatten()

   Array.prototype.flatten = function() {
       var originalArray = this;
       var newArray = [];
       var i = 0;
       var j = 0;
       var element;
       var temp;
       for (i = 0; i < originalArray.length; i+=1) {
           element = originalArray[i];
   ...
   

8. flatten()

   Array.prototype.flatten = function() {
       var resultArray = [];
       innerFlatten(this);
       function innerFlatten(arr) {
           arr.forEach(function(el) {
               if(Array.isArray(el)) {
                   innerFlatten(el);
               } else {
                   resultArray.push(el);
   ...
   

9. flatten()

   var exchanges = [
     [
       {symbol: "JNJ", price: 2030.00, volume:48984}, 
        {symbol: "PWC", price: 4340.00, volume:15985}
     ],
     [
       {symbol: "CISC", price: 4563.00, volume:874651},
       {symbol: "KROG", price: 712.00, volume:8949}
     ]
   ...