Common Ruby Idioms

Question

One thing I love about ruby is that mostly it is a very readable language (which is great for self-documenting code)

However, inspired by this question: Ruby Code ex

Answer 1

I like how If-then-elses or case-when could be shortened because they return a value:

if test>0
  result = "positive"
elsif test==0
  result = "zero"
else
  result = "negative"
end

could be rewriten

result = if test>0
  "positive"
elsif test==0
  "zero"
else
  "negative"
end

The same could be applied to case-when:

result = case test
when test>0 ; "positive"
when test==0 ; "zero"
else "negative"
end