Ruby concatenate strings and add spaces

Posted by David Oneill on Stack Overflow See other posts from Stack Overflow or by David Oneill
Published on 2010-03-12T18:26:57Z Indexed on 2010/03/12 18:27 UTC
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ruby

|

string

|

concatenation

I have 4 string variables name, quest, favorite_color, speed that might be empty. I want to concatenate them all together, putting spaces between those that aren't empty.

So:

name = 'Tim'
quest = 'destroy'
favorite_color = 'red'
speed = 'fast'

becomes

'Tim destroy red fast'

and

name = 'Steve'
quest = ''
favorite_color = ''
speed = 'slow'

becomes:

'Steve slow'

(Notice: there is only 1 space between 'Steve' and 'slow')

How do I do that (preferably in 1 line).

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