为什么“ this”不能与console.log一起使用？

Question

I assumed that .call should //change the context of this in the log method to obj, but it doesnt seem to be //doing that, it seems to refer to the window object as if I used this side a function

let obj={
    a: "this should work right?"
}

console.log.call(obj,this.a);//returns undefined

Answer 1

you are not in a function scope, instead you should test this way:

let obj={
    a: "this should work right?"
};

let myFunc = function() { // u define a function scope here
    return this.a;
};

console.log(myFunc.call(obj));
// console.log.call(obj,this.a);