Lint-UselessAssignment.md

Pattern: Useless assignment

Issue: -

Description

This rule checks for every useless assignment to local variable in every scope. The basic idea for this rule was from the warning of ruby -cw:

assigned but unused variable - foo

Examples

# bad

def some_method
  some_var = 1
  do_something
end

# good

def some_method
  some_var = 1
  do_something(some_var)
end

Further Reading

• RuboCop - Lint/UselessAssignment
• https://github.com/bbatsov/ruby-style-guide#underscore-unused-vars