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I have this block of code:

super_heroes = [ ["Spider Man", "Peter Parker"], ["Deadpool", "Wade Wilson"], ["Wolverine", "James Howlett"] ] super_heroes.each do |sh| sh.each do |heroname, realname| puts "#{realname} is #{heroname}" end end

The output is this:

 is Spider Man is Peter Parker is Deadpool is Wade Wilson is Wolverine is James Howlett

But I wanted to be this:

Peter Parker is Spider Man Deadpool is Wade Wilson Wolverine is James Howlett

After hours of iterating the code, I still couldn't figure it out. I would appreciate if someone could put me in the right direction and explain what I'm doing wrong. Thanks!

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2 Answers 2

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Do as below :

super_heroes = [ ["Spider Man", "Peter Parker"], ["Deadpool", "Wade Wilson"], ["Wolverine", "James Howlett"] ] super_heroes.each do |heroname, realname| puts "#{realname} is #{heroname}" end # >> Peter Parker is Spider Man # >> Wade Wilson is Deadpool # >> James Howlett is Wolverine

What happened with your code ?

super_heroes.each do |sh| # sh is ["Spider Man", "Peter Parker"] etc.. # here **heroname** is "Spider Man", "Peter Parker" etc. # every ietration with sh.each { .. } your another variable **realname** # is **nil** sh.each do |heroname, realname| puts "#{realname} is #{heroname}" # as **realname** is always **nil**, you got the output as # is Spider Man # is Peter Parker # ..... # ..... end end
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That works! Why didn't I think of that!!! Knowing that it's a 2D array my extinct told me to maybe use .each method twice. @mdsantis: "Flash" badge indeed.
1

Try this also,

super_heroes.each do |sh| puts sh.join(" is ") end
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