Nodejs Array Merge All mergeAll()

Method Source Code

var school = [//from   w w  w. jav  a  2 s .  c  o  m
   [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);
   });
   return result;
};

var a = school.mergeAll(function(x) {
   return x;
});

console.log(a);

Related

1. mergeAll()

   Array.prototype.mergeAll = function() {
     var results = [];
     this.forEach(function(subArray) {
       subArray.forEach(function(number) {
         results.push(number);
       });
     });
     return results;
   };
   ...
   

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;