weakMap/new Vs Object.create.html at master · qiudaoermu/weakMap · GitHub

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<!DOCTYPE html>
<html>
<head>
	<title></title>
</head>
<body>


</body>
<script type="text/javascript">
	function DD(){
			this.name = 'name'
	}
	DD.prototype.ask = function(){
		console.log('ask')
	}
	function newS(func){
			var ob = Object.create(func.prototype)
			var k = func.call(ob)
			if(typeof k==='object'){
				return k
			}else{
				return ob
			}
	}
	var c= newS(DD);
	console.log(c)
	console.log(c.ask());


	var Klass = function(){

	}
	Klass.prototype.a = function(){
			console.log("a")
	}
	var ne = new Klass()
	ne.a()

	var cre = Object.create(Klass.prototype)
	cre.a()
	var count = 10240;
	console.time("new");
	for(var i=0;i<count;i++){
		let object = new Klass()
	}
	console.timeEnd("new");

	console.time("create")
	for(var i=0;i<count;i++){
		let object = Object.create(Klass.prototype)
	}
	console.timeEnd("create")
</script>
</html>