javascriptTips/lazyman.html at master · tinyzh/javascriptTips · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>LazyMan</title>
</head>
<body>
	<script>
		function _lazyman(_name){
			var _this = this;
			_this.tasks = [];
			_this.tasks.push(function(){
				console.log('Hi! This is ' + _name + '!');
				_this.next();
			});

			setTimeout(function(){
				_this.next();
			},0);
		}

		_lazyman.prototype.next = function(){
			var _fn = this.tasks.shift();
			_fn && _fn();
		}

		_lazyman.prototype.eat = function(_fruit){
			var _this = this;
			this.tasks.push(function(){
				console.log('Eat ' + _fruit);
				_this.next();
			});
			return _this;
		}

		_lazyman.prototype.sleep = function(_time){
			var _this = this;
			_this.tasks.push(function(){
				setTimeout(function(){
					console.log('Wake up after ' + _time);
					_this.next();
				},_time);
			})
			return _this;
		}

		_lazyman.prototype.sleepFirst = function(_time){
			var _this = this;
			_this.tasks.unshift(function(){
				setTimeout(function(){
					console.log('Wake up after ' + _time);
					_this.next();
				},_time);
			})
			return _this;
		}

		var LazyMan = function(_name){
			return new _lazyman(_name);
		}

		LazyMan('TinyZ').eat('milk').sleep(5000).sleepFirst(2000);


	</script>
</body>
</html>