I am trying to split up a string by caps using Javascript, Examples of what Im trying to do: "HiMyNameIsBob" -> "Hi My Name Is Bob" "GreetingsFriends" -> "Greetings Friends" I am aware of the str.split() function, however I am not sure how to make this function work with capital letters. I've tried: str.split("(?=\\p{Upper})") Unfortunately that doesn't work, any help would be great.