Add isValid methods

[NatWeiss]

Hi Broofa, nice project here. ;) Just a suggestion. It would be nice if there was a method sort of like:

nodeUuid.isV4(someUuidString);

That way it would be easy to know if a string is a valid UUID v4. Right now, I have to resort to something janky like this:

if (!uuid || uuid.length < 32 || uuid.indexOf("-") < 0) {
    uuid = nodeUuid.v4();
}

[marbemac]

For those wondering how to validate a UUID v4, the regex looks like this (in JS, but generally applicable):

var id = "the id to test";
/^[a-z0-9]{8}-[a-z0-9]{4}-4[a-z0-9]{3}-[a-z0-9]{4}-[a-z0-9]{12}$/.test(id)

[tracker1]

@NatWeiss @tjconcept might want to take a look at validator, which will give you a lot more than just UUID validation.

[tjconcept]

@tracker1 "a lot more" is a bad thing in my book ;-)
Thanks @marbemac, I still think it would be a nice addition to this library though.

[marbemac]

@tjconcept I agree, would be a nice addition to the library.

[tracker1]

@tjconcept @marbemac Although I understand the concern... I'm assuming you have to validate more than just UUIDs in your application... that being the case a common abstract for validation is probably better than a custom one for each type of data.

[lianghua1987]

Yeah, I like this idea!

[tjconcept]

I'm assuming you have to validate more than just UUIDs in your application...

No I don't :)

[vdininski]

+1

[jtemplet]

I also think this would be a great idea and I also like the syntax suggested above:

nodeUuid.isValid(input)
// returns boolean

I'd volunteer to add this feature

[jiayihu]

+1
Is this repo still active? I'd like also to add this feature but the pending Pull Requests are not reassuring.

[mindvox]

This is an old issue, but would be a great feature 👍