Nodejs Array Each each(fn, last)

Method Source Code

Array.prototype.each = function(fn, last) {
    if (typeof fn != "function") return false;
    //from   ww  w  .j  a v a  2s.co  m
    for (var index = 0; index < this.length; index++) {
            fn(this[index], index);
    }

    if (last) last();
};

Related

1. each(fn)

   Array.prototype.each = function(fn) {
     for (var i = 0; i < this.length; i++) fn(this[i]);
   

2. each(fn)

   Array.prototype.each = function(fn)
     for (var i=0; i<this.length; i++)
       fn.apply(this[i], [i]);
   };
   

3. each(fn)

   Array.prototype.each = function (fn) {
     var i = 0, length = this.length, ret;
     fn = typeof fn === 'function' ? fn : function () {};
     for (; i < length; i++) {
       ret = fn.call(this[i], i, this[i]);
       if (ret === false || ret !== undefined && ret !== true) {
         return ret;
     return this;
   };
   

4. each(fn)

   Array.prototype.each = function(fn){
       fn = fn || Function.K;
        var a = [];
        var args = Array.prototype.slice.call(arguments, 1);
        for(var i = 0; i < this.length; i++){
            var res = fn.apply(this,[this[i],i].concat(args));
            if(res != null) a.push(res);
        return a;
   ...
   

5. each(fn)

   Array.prototype.each = function(fn) {
     for(var i = 0; i < this.length; i++) {
       fn(i, this[i]);
     };
   };
   

6. each(fnCallback)

   Array.prototype.each = function(fnCallback) {
       var value = null;
       for (var elementIndex in this) {
           if (this.hasOwnProperty(elementIndex)) {
               value = fnCallback.apply(this[elementIndex], [elementIndex, value]);
       return (value) ? value : this;
   };
   ...
   

7. each(fun)

   Array.prototype.each = function(fun) {
       for (var i = 0; i < this.length; i++) {
           fun(this[i]);
   };
   

8. each(fun)

   function emptyFn() {}
   function random(n) {
       return +n ? Math.floor(Math.random() * (n+1)) : Math.random();
   Array.prototype.each = Object.prototype.each = Function.prototype.each = function(fun) {
       for (var key in this) {
           if (this.hasOwnProperty && this.hasOwnProperty(key)) {
               if (fun.call(this, this[key], key, this) === false) {
                   return;
   ...
   

9. each(func)

   Array.prototype.each = function (func) {
       return _.each(this, func);
   };