class RubbyCop::Cop::Style::DoubleNegation
This cop checks for uses of double negation (!!) to convert something to a boolean value. As this is both cryptic and usually redundant, it should be avoided.
@example
# bad !!something # good !something.nil?
Please, note that when something is a boolean value !!something and !something.nil? are not the same thing. As you're unlikely to write code that can accept values of any type this is rarely a problem in practice.
Constants
- MSG
Public Instance Methods
on_send(node)
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# File lib/rubbycop/cop/style/double_negation.rb, line 27 def on_send(node) return unless double_negative?(node) && node.keyword_bang? add_offense(node, :selector) end