Nicky_Cookie

Family of Nicky and Cookie

Project maintained by cqcmdwym Hosted on GitHub Pages — Theme by mattgraham

case 1

'use strict'

function Cat(){
	this.name = 'Fluffy';
	this.color = 'white';
}

var cat = new Cat();
console.log(cat);

case 2

function Cat(){
	this.name = 'Fluffy';
	this.color = 'white';
}

var cat = Cat();
console.log(cat);//undefined, 因为Cat未return回去，但是this指向的是global（window）
console.log(window.color);