Oct 31, 2014

用 JavaScript 实现 ruby times 方法

JavaScript

Number.prototype.times = function(fn) {
  var times = this.valueOf();
  while(times && times > 0){
  	fn();
  	times--;
  }
};

5..times(function(){
  console.log('Hello World!');
});

CoffeeScript

Number::times = (fn) ->
  do fn for [1..@valueOf()] if @valueOf()
  return

5.times -> console.log 'Hello World!'