JS Adding property to object

Question

I'm trying to add a property to an object the following way:

function methodA(client, page){
    Object.defineProperty(client, 'name', {
        value: page,
        writable: true,
        enumerable: true,
        configurable: true
      });

    methodB(client)
}

When I do a console log of client.name in methodB it returns undefined. Can someone point me out what I'm doing wrong ? I'm new to JS.

client.name = page; would probably be easier

CollinD
– CollinD

2018-05-23 16:38:38 +00:00
Commented May 23, 2018 at 16:38 — CollinD
– CollinD, Commented May 23, 2018 at 16:38
Where is it returning undefined?

user47589
– user47589

2018-05-23 16:49:08 +00:00
Commented May 23, 2018 at 16:49 — user47589
– user47589, Commented May 23, 2018 at 16:49
Maybe you are not passing a second argument to methodA?

Parama Kar
– Parama Kar

2018-05-23 17:03:23 +00:00
Commented May 23, 2018 at 17:03 — Parama Kar
– Parama Kar, Commented May 23, 2018 at 17:03

Michael Beeson · Accepted Answer · 2018-05-23 20:59:26Z

2

Giving your code some dummy values it seems to work perfectly well. The error must be elsewhere. Run the snippet and see:

function methodA(client, page){
    Object.defineProperty(client, 'name', {
        value: page,
        writable: true,
        enumerable: true,
        configurable: true
      });

    methodB(client)
}

function methodB(client) {
    console.log(client);
    console.log("Name property is: "+client.name);
}

methodA({a:9}, 12);

Maybe try to make a snippet the gives the same error (you might stumble into the solution by yourself in doing so)

edited May 23, 2018 at 20:59

answered May 23, 2018 at 16:44

Michael Beeson

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3 Comments

elcharrua Over a year ago

I tried that and to check that it was working after I defined the property, and I try to client.name, value comes as undefined

Michael Beeson Over a year ago

I've edited the snippet for the console to also log specifically "client.name". It works. Does the snippet not work on your computer?

elcharrua Over a year ago

Thanks a lot on the response I had a typo on my code!

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