Why would this. return undefine?

Asked Feb 13 '18 at 08:49

Active Feb 13 '18 at 08:49

Viewed 33 times

I wonder why this.show would return undefined, meanwhilte quiz.show will return the function.

This code works:

const quiz = {
//Generates the quiz
generateQuiz: () => {
    quiz.resetQ();
    quiz.generateRandomQuestions();
    quiz.displayQuiz();
    quiz.show();
},

This returns undefined:

const quiz = {
//Generates the quiz
generateQuiz: () => {
    this.resetQ();
    this.generateRandomQuestions();
    this.displayQuiz();
    this.show();
},

asked Feb 13 '18 at 08:49

Christian H

1

Don't abuse arrow function, if you don't understand how it works. Use `generateQuiz: function () {` – dfsq Feb 13 '18 at 08:51
Is there a reason you're not using classes? – Andrew Bone Feb 13 '18 at 08:51
Not experienced enough to use classes! Trying to understand arrow functions – Christian H Feb 13 '18 at 08:52
Have a read of this https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes – Andrew Bone Feb 13 '18 at 08:53
please share more info I mean functions you have mentioned – sgajera Feb 13 '18 at 09:04

Why would this. return undefine?

0 Answers0