no it works for all kinds of words. the reason it works is calling split(' ') on strings with double or arbitrarily spaced characters produced empty strings in the return value, and when you call .join() all the empty strings are joined back with spaces between them. the empty strings from splitting multi-spaced strings act as placeholders for when the string is re-formed so the spacing is preserved

Wow, what a solution! I love one liners and it looks clean!

Clear and concise! I love it. Much cleaner than my own.

Very simple and clean. Easily the best practice and I learned a lot from this.

This is a great solution for double and single spaces! But for anything more you'll need to utilize RegEx

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