question mark dot javascript

Unusual Unicorn answered on July 22, 2021 Popularity 10/10 Helpfulness 4/10

answer question mark dot javascript

question mark dot javascript

Comment

Tip Unusual Unicorn 1 GREPCC

const adventurer = {
  name: 'Alice',
  cat: {
    name: 'Dinah'
  }
};

const dogName = adventurer.dog?.name;
console.log(dogName); //undefined, doesn't return error
const catName = adventurer.cat?.name;
console.log(catName); //Dinah

xxxxxxxxxx

const adventurer = {

  name: 'Alice',

  cat: {

    name: 'Dinah'

};

const dogName = adventurer.dog?.name;

console.log(dogName); //undefined, doesn't return error

const catName = adventurer.cat?.name;

console.log(catName); //Dinah

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: developer.mozilla.org

Tags: dot javascript

Link to this answer
Share Copy Link

Contributed on Jul 22 2021

Unusual Unicorn

0 Answers Avg Quality 2/10

question mark dot javascript

Contents

More Related Answers

question mark dot javascript

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.