Question

I see how to remove excess spaces, but dont see a simple way (other than manually iterating) to turn the string “happy” into “h a p p y ” (with or without that last space doesn’t matter)?

Answer 1

A regex would be an easy way:

'happy'.gsub(/./) { |m| m + ' ' }
# "h a p p y "

Or a few more:

'happy'.gsub(/./) { |m| m + ' ' }.strip # No trailing space.
'happy'.gsub(/./) { $& + ' ' }          # Trailing space, uses global $& variable.
'happy'.gsub(/./) { $& + ' ' }.strip    # Ues global variable, no trailing space.
'happy'.chars.to_a.join(' ')            # No regex, no trailing space.
'happy'.split('').join(' ')             # No regex, no trailing space.

I kinda’ like the split/join one myself.