feature request: add split() to string methods

[oreporan]

We need to pass some custom claims to firebase rules. These must be strings. However one of these is an array such as:
queues : ['queue1' , 'queue2']
so to pass it to firebase we serialize is like so:
queues : 'queue1 queue2'

Now in the rules we want to pull out queues[0] , therefor we need to call split(" ") on the incoming auth.queues

I've also tried -
auth.queues.replace(/\s.*$/, "")
Which also doesn't work due to replace only accepting (string, string)

[gaurav414u]

Yes, it should be there!