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JavaScript Object-Oriented JavaScript Getters and Setters Object Interaction

Samuel Cleophas
Samuel Cleophas
12,348 Points

Why does the setter 'method' not take in arguments?

Why doesn't this code work? I feel like a lot of things are wrong.

class Owner {
    constructor (name, address) {
        this.address = address;
        this.name = name;
    set mobile(phone) {
        this._mobile = phone.replace(/[^0-9]/g, '');
    get mobile() {
        return this._mobile;

const ernie = new Pet('dog', 1, 'pug', 'bark');
const owner = new Owner('Samuel', '18, Druitt Street');
owner.mobile.phone('(+61)447 21 4934');


After watching these videos, because the argument, property, and method are all named the same in the video, it just feels like I don't understand which one is which.

I named them differently to help myself understand what the heck is going on but I still don't get it. :(

3 Answers

Steven Parker
Steven Parker
218,654 Points

Since you renamed things, "phone" is not a property now, but "mobile" is. So to set and then get that property:

owner.mobile = '(+61)447 21 4934';


I also removed the line creating the constant "ernie" since "Pet" isn't defined here.

And setters are defined like methods, but to use them you make assignments as if they were variables.


owner.mobile = '(+61)447 21 4934'; instead of owner.mobile.phone('(+61)447 21 4934');


Try this... const phoneNormalized = phone.replace(/[^0-9\.]+/g, '');