this keyword in JavaScript: please why does the alert say hello 521

Asked Mar 27 '20 at 11:58

Active Mar 27 '20 at 12:00

Viewed 30 times

Please why does the alert display hello 521

"use strict";

let user = {
  name: "John",
  greet: `hello ${this.name}`
};

alert(user.greet);

edited Mar 27 '20 at 12:00

mplungjan

asked Mar 27 '20 at 11:58

Israel

1

this.name is not the user's name but the window's name because `this` is not what you think it is – mplungjan Mar 27 '20 at 12:00
I know there is a global this in browsers called window, but it's in an object and I thought this takes in the object it is in – Israel Mar 27 '20 at 12:03
'this' refers to the caller. For your code to work, give user.name instead of this.name – Muralidharan Mar 27 '20 at 12:04
Tried that but it gives an error that says cannot access user before initialization – Israel Mar 27 '20 at 13:35
It works on the browser but not in node.js – Israel Mar 27 '20 at 13:40

0 Answers0