Difference between "and" and && in Ruby?

ruby operators
Jakub Arnold picture Jakub Arnold · Sep 15, 2009 · Viewed 158.8k times · Source

What is the difference between the && and and operators in Ruby?

Answer

Dominic Rodger picture Dominic Rodger · Sep 15, 2009

and is the same as && but with lower precedence. They both use short-circuit evaluation.

WARNING: and even has lower precedence than = so you'll usually want to avoid and. An example when and should be used can be found in the Rails Guide under "Avoiding Double Render Errors".

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