Nodejs Array Merge All mergeAll()

Here you can find the source of mergeAll()

Method Source Code

Array.prototype.mergeAll = function() {
   var results = [];
   this.forEach(function(subArray) {
      subArray.forEach(function(number) {
         results.push(number);//from w w w  . ja va2 s  .  c  o  m
      });
   });
   return results;
};

var result = JSON.stringify([ [1,2,3], [4,5,6], [7,8,9] ].mergeAll());
console.log(result);
console.log(result === "[1,2,3,4,5,6,7,8,9]");
// [1,2,3].mergeAll(); // throws an error because this is a one-dimensional array

Related

  1. mergeAll()
    var school = [
      [1, 2, 3],
      [4, 5, 6, 7, 8, 3],
      [5, 3, 5]
    ];
    Array.prototype.mergeAll = function() {
      var result = [];
      this.forEach(function(subArray) {
        result.push.apply(result, subArray);
    ...
    
  2. mergeAll()
    Array.prototype.mergeAll = function() {
        var results = [];
        this.forEach(function(subArray) {
        subArray.forEach(function(element) {
          results.push(element);
        });
        });
        return results;
    };
    ...
    
  3. mergeAll()
    Array.prototype.mergeAll = function() {
        var results = [];
        this.forEach(function(subArray) {
          subArray.forEach(function(itemInArray) {
            results.push(itemInArray);
          });
        });
        return results;
    };
    ...
    
  4. mergeAll()
    Array.prototype.mergeAll = function(){
      var result = [];
      this.forEach(function(subArray){
        subArray.forEach(function(item){
          result.push(item);
        })
      })
      return result;
    
  5. mergeAll()
    Array.prototype.mergeAll = function(){
      var result = [];
      this.forEach(function(subArray){
        subArray.forEach(function(item){
          result.push(item);
        })
      })
      return result;
    var a = [[1,2],[3,4]];
    a.mergeAll();