Declare custom value for boolean true of false

Question

I vaguely remember that I've seen custom values for a boolean true/false sometimes, but I have no idea what it is called or how exactly it was written.

So I have this code:

 preferenceHotel = document.getElementById('preference-hotel').checked;

Now instead of preferenceHotel returning true or false, I would like it to return other values (yes or no), without writing an if statement checking whether it is true or false.

I remember something like this:

 preferenceHotel = document.getElementById('preference-hotel').checked:"yes"|"no";

Does anybody know what I mean and know the name of it so I can read the documentation? (+ write it for my use case).

Thanks in advance!

Answer 1

How about this:

preferenceHotel = document.getElementById('preference-hotel').checked ? "yes" : "no";

Answer 2

You can do it by using Ternary operators in JavaScript

let preferenceHotel = (document.getElementById('preference-hotel').checked) ? "yes" : "no";

Conditional Operators

Answer 3

try:

  preferenceHotel = document.getElementById('preference-hotel').checked?"yes": "no";