Nodejs Array Append Item add(item)

Method Source Code

/**/*w w w  .j a v a  2s . com*/
 * 
 */
var SEP = ',';

Array.prototype.add = function(item) {
    for ( var i = 0; i < this.length; i++) {
        if (this[i] === item) {
            return this;
        }
    }
    this[this.length] = item;
    return this;
}

Array.prototype.indexOf = function(item) {
    for ( var i = 0; i < this.length; i++) {
        if (this[i] == item) {
            return i;
        }
    }
    return -1;
}

Array.prototype.compare = function(other) {
    var diff = [];
    for ( var i = 0; i < this.length; i++) {
        if (other.indexOf(this[i]) < 0) {
            diff.push(this[i]);
        }
    }
    return diff;
}

Array.prototype.remove = function(item) {
    var index = -1;
    for ( var i = 0; i < this.length; i++) {
        if (this[i] == item) {
            index = i;
        }
    }
    var re = this[index];
    if (index >= 0) {
        this.splice(index, 1);
    }
    return re;
}

Related

1. add(el)

   Array.prototype.add = function (el) {
       var index = this.indexOf(el);
       if (index == -1) {
           this.push(el);
   };
   Array.prototype.remove = function (el) {
       var index = this.indexOf(el);
       if (index > -1) {
   ...
   

2. add(element)

   Array.prototype.add = function(element) {
     var newSize = this.push(element);
     return newSize-1;
   

3. add(elemento,duplicado)

   Array.prototype.add = function(elemento,duplicado) {
     if(duplicado===false){
       for (var i = 0; i < this.length; i++) {
         if(this[i]===elemento)
           return;
     this[this.length] = elemento;
   

4. add(index, element)

   Array.prototype.add = function(index, element) {
     if (arguments.length == 2) {
       this.splice(index, 0, element);
     } else {
       this.push(index);
   };
   

5. add(index, item)

   Array.prototype.add = function(index, item){
     if (item === undefined){
       item = index;
       index = 0;
     while (index > this.length){
       this.push(undefined);
     this.splice(index, 0, item);
   ...
   

6. add(obj)

   Array.prototype.add = function (obj) {
       var i = this.length;
       this[i] = obj;
       return i;
   };
   

7. add(other)

   Array.prototype.add = function(other) {
       console.assert(this.length == other.length, 'add: len(a) != len(b)');
       var ret = new Array(this.length);
       for(var i = 0; i < ret.length; i++)
           ret[i] = this[i] + other[i];
       return ret;
   

8. add(value)

   "use strict";
   Array.prototype.add = function(value) {
       this.push(value);