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gotcharubyCritical

Difference between "and" and && in Ruby?

Submitted by: @import:stackoverflow-api··
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rubyandbetweendifference

Problem

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

Solution

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".

Context

Stack Overflow Q#1426826, score: 413

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