es6对象简写

<script type="text/javascript">

    let username='java1234';
    let pwd='123456';
    /*let obj={
        username:username,
        pwd:pwd,
        getUserName:function(){
            return this.username;
        }
    }*/
    let obj={
        username,
        pwd,
        getUserName(){
            return this.username;
        }
    }
    // console.log(obj.username,obj.pwd);
    console.log('es6',obj.getUserName());
</script>