Nodejs Function Call times(f, context)

Method Source Code

/**//from   w w w .j av a 2 s  .  c o  m
 * Created by yuanli on 9/18/2016.
 */
function Range(from, to) {
    this.from = from;
    this.to = to;
};

Range.prototype = {
    constructor: Range,
    includes: function(x) {
        return this.from <= x && x <= this.to;
    },
    foreach: function(f) {
        for(var x = Math.ceil(this.from); x <= this.to; x++) f(x);
    },
    toString: function() {
        return "(" + this.from + "..." + this.to + ")";
    }
};

var r = new Range(1,3);
r.includes(2);
r.foreach(console.log);
console.log(r);



Number.prototype.times = function(f, context){
    var n = Number(this);
    for(var i = 0; i < n; i++) {
        f.call(context, i);
    }
};

var n = 3;
n.times(function(n) {
    console.log(n + "Hello")
});

Related

1. times(n)

   Function.prototype.times = function (n) {
     if (n <= 0) {
       throw new TypeError('Invalid argument');
     var fn = this;
     return function () {
       for (var i = 0; i < n; i += 1) {
         fn.call(null, arguments);
     };
   };
   

2. partial()

   Function.prototype.partial = function(){
       var fn = this, args = Array.prototype.slice.call(arguments);
       return function(){
         var arg = 0;
         for ( var i = 0; i < args.length && arg < arguments.length; i++ )
           if ( args[i] === undefined )
             args[i] = arguments[arg++];
         return fn.apply(this, args);
       };
   ...
   

3. map(map)

   Function.prototype.map = function (map) {
       var params = this.getParamNames();
       var fn = this;
       for (var i in params)
           fn = fn.bind({}, map[params[i]]);
       return fn;
   };
   

4. times(f, context)

   Number.prototype.times = function(f, context){
     var n = Number(this);
     for(var i = 0; i < n; i++){
       f.call(context, i);
   };
   

5. times(f, context)

   Number.prototype.times = function(f, context) {
     var n = Number(this);
     for(var i = 0; i < n; i++) f.call(context, i);
   };
   String.prototype.trim = String.prototype.trim || function() {
     if (!this) return this; 
     return this.replace(/^\s+|\s+$/g, ""); 
   };
   Function.prototype.getName = function() {
   ...
   

6. times(fn)

   'use strict';
   Number.prototype.times = function(fn) {
     if (this.valueOf()) {
       for (var i = 0; i < this.valueOf(); i++) {
         fn(i);
   };
   function repeat(n, fn) {
   ...
   

7. times(func)

   var i = 0;
   Number.prototype.times = function(func) {
     let n = Math.round(this);  
     if (n <= 0) return null;
     func();
     return (n - 1).times(func);
   console.log(i);
   

8. times(func)

   Number.prototype.times = function (func) {
     var i;
     for (i = 0; i < this; i += 1) {
       func();
   };
   function random(min, max) {
       var floor = +min,
           ceil = +max;
   ...