Help with Arcade Expression

[BrianE1]

I have built a custom locator that returns the Address and also the borough in the "Match_addr" field. So, when labeled it appears lihe this:

200 Fifth Avenue: Manhattan

I'd like to to just have the address without the borough.  SO, like this:

200 Fifth Avenue

Can anyone help me with this?

[JohannesLindner]

var address = "200 Fifth Avenue: Manhattan"
return Split(address, ":")[0]