Insert space before capital letters

Question

I have a string \"MySites\". I want to place a space between My and Sites.

How can I do this in jQuery or JavaScript?

Answer 1

You can just add a space before every uppercase character and trim off the leading and trailing spaces

s = s.replace(/([A-Z])/g, ' $1').trim()

Answer 2

Might I suggest a slight edit to the currently accepted answer:

function insertSpaces(string) {
    string = string.replace(/([a-z])([A-Z])/g, '$1 $2');
    string = string.replace(/([A-Z])([A-Z][a-z])/g, '$1 $2')
    return string;
}

This means that:

ACROText -> ACRO Text
UserNameTest -> User Name Test

Which might be slightly more useful if you are dealing with db column names (And are using acronyms for some things)