Style-NonNilCheck.md

Pattern: Redundant nil check

Issue: -

Description

This rule checks for non-nil checks, which are usually redundant. Non-nil checks are allowed if they are the final nodes of predicate.

Examples

# bad
if x != nil

# good (when not allowing semantic changes)
# bad (when allowing semantic changes)
if !x.nil?

# good (when allowing semantic changes)
if x

Default configuration

Attribute	Value
IncludeSemanticChanges	false

Further Reading

• RuboCop - Style/NonNilCheck
• https://github.com/bbatsov/ruby-style-guide#no-non-nil-checks