Trying to understand the keyword "this" in javascript

Asked Aug 02 '23 at 18:01

Active Aug 02 '23 at 18:03

Viewed 31 times

function hello() {

    let list = {
        firstName: "Jack"
    }

    return "Hello " + this.firstName;
}

console.log(hello());

How does the keyword "this" work? I cant get my head around it. How should I use it and how should I think? Is there any simple sentence you can associate "this" so its easier to understand?

edited Aug 02 '23 at 18:03

M0nst3R

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asked Aug 02 '23 at 18:01

yunolol

`this` is whatever is the runtime context, _unless_ it's inside an arrow function, where it is the context at declaration. – Mike 'Pomax' Kamermans Aug 02 '23 at 18:04
Most of the time `this` is used to refer to object that calls the function. If you do `someObj.func()` then for the `.func()` function, `this` will be `someObj`. – user137794 Aug 02 '23 at 18:34
If you mean `list.firstName`, you should *not* use `this`. – Bergi Aug 02 '23 at 21:15

Trying to understand the keyword "this" in javascript

0 Answers0