What happens to the new arrow function in ES6

1）new Keyword execution process

• new After constructor , An empty object will be created in memory
• this It will point to the empty object just created
• Execute code in constructor , Add attribute methods to empty objects
• Return this new object （ So... Is not required in the constructor return）

2） Arrow function
In the arrow function this Is static , Point to the object where it was defined , It will not be the object at the time of call ,this The direction cannot be changed

        var age=18
        var obj={
    
            age:20,
            getAge(){
    
                // Constructors , Who is calling ,this Just point to who 
                console.log(this.age);
            },
            getAge1:()=>{
    
                //this Is static , Point to the object where it was defined （window object ）, Can't be a constructor 
                console.log(this.age);
            },
        }
        obj.getAge()//20
        obj.getAge1()//18