Ruby concatenate strings and add spaces

ruby string concatenation

[name, quest, favorite_color, speed].reject(&:empty?).join(' ')

ruby string concatenation

Try [name,quest,favorite_color,speed].join(' ').squeeze(' ')

ruby string concatenation

You can use inject:

[name,quest,favorite_color,speed].inject("") {|k,v| v.empty? ? k : k << " " << v }.strip

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