ruby - Checking for nil string before concatenating -


This question is very similar to many queries, but it is not that it is anything from a duplicate. Is about and writing better code for zero / zero probes.

Currently I have: 

  file.puts "cn:" + (Var1.nil ?? "UNKNOWN": var1)

Which works fine but does not look good What is a better way to write it in Ruby that I am checking for zero and not including it

" Post-text "itemprop =" text ">

You can: 

  file.puts" cn: "+ (var1 ||" UNKNOWN ")  < / Pre> 
 Or, if you prefer: 
 
  file.puts "cn:" + (var1 or "UNKNOWN")  
 
  Or my favorite, which I think is The most idiomatic Ruby is:  
 
  file.puts "cn: # {var1 or 'unknown'}"

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