Nodejs Array Concatenate concatAll()

Method Source Code

Array.prototype.concatAll = function() {
    let result = [];//from  w w w .  ja v a2  s . c  om

    this.forEach(items => 
        result = result.concat(items)
    );

    return result;
}

Related

1. concat(arg)

   var my_array=Array.prototype.concat;
   Array.prototype.concat=function (arg) {
       var result = arg[0];
       for (var i = 1; i < arg.length; i++) {
           result += "-" + arg[i];
       console.log(result);
   var piyo=new Array(100,200,300);
   ...
   

2. concatAll()

   Array.prototype.concatAll = function() {
     var results = [];
     this.forEach(function(subArray) {
       results.push.apply(results, subArray);
     });
     return results;
   };
   

3. concatAll()

   Array.prototype.concatAll = function() {
     var results = [];
     this.forEach(function(subArray) {
       subArray.forEach(function(item) {
         results.concat(item);
       });
     });
     return results;
   

4. concatAll()

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

5. concatAll()

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

6. concatAll()

   Array.prototype.concatAll = function() {
     let results = [];
       for (let i = 0; i < this.length; i++) {
           results.push.apply(results, this[i]);
     return results;
   };
   

7. concatAll()

   Array.prototype.concatAll = function() {
     return this.reduce((results, current) => {
       if(Array.isArray(current)) {
           return results.concat(current).concatAll();
       } else {
           return (results.push(current), results);
     }, []);
   };
   ...
   

8. concatAll()

   Array.prototype.concatAll = function() {
     var results = [];
     this.forEach(function(subArray) {
       if (Array.isArray(subArray)) {
         subArray.forEach(function(item) {
           results.push(item);
         });
     });
   ...
   

9. concatAll()

   Array.prototype.concatAll = function () {
     let results = [];
     this.forEach(function (subArray) {
       results.push.apply(results, subArray);
     });
     return results;
   };