Method: Range#include_with_range?

Defined in:
activesupport/lib/active_support/core_ext/range/include_range.rb

#include_with_range?(value) ⇒ Boolean

Extends the default Range#include? to support range comparisons.

(1..5).include?(1..5) # => true
(1..5).include?(2..3) # => true
(1..5).include?(2..6) # => false

The native Range#include? behavior is untouched.

("a".."f").include?("c") # => true
(5..9).include?(11) # => false

Returns:

  • (Boolean) 

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# File 'activesupport/lib/active_support/core_ext/range/include_range.rb', line 10

def include_with_range?(value)
  if value.is_a?(::Range)
    # 1...10 includes 1..9 but it does not include 1..10.
    operator = exclude_end? && !value.exclude_end? ? :< : :<=
    include_without_range?(value.first) && value.last.send(operator, last)
  else
    include_without_range?(value)
  end
end