Sha256: 50c7d746d1911a4fcdc2b8d9611d116a3dd952f8e6439df03c04a8d24835f8b7

Contents?: true

Size: 724 Bytes

Versions: 25

Compression:

Stored size: 724 Bytes

Contents

class Object
  # An object is blank if it's false, empty, or a whitespace string.
  # For example, "", "   ", +nil+, [], and {} are blank.
  #
  # This simplifies
  #
  #   if !address.nil? && !address.empty?
  #
  # to
  #
  #   if !address.blank?
  def blank?
    respond_to?(:empty?) ? empty? : !self
  end
end

class NilClass #:nodoc:
  def blank?
    true
  end
end

class FalseClass #:nodoc:
  def blank?
    true
  end
end

class TrueClass #:nodoc:
  def blank?
    false
  end
end

class Array #:nodoc:
  alias_method :blank?, :empty?
end

class Hash #:nodoc:
  alias_method :blank?, :empty?
end

class String #:nodoc:
  def blank?
    self !~ /\S/
  end
end

class Numeric #:nodoc:
  def blank?
    false
  end
end

Version data entries

25 entries across 25 versions & 7 rubygems

Version Path
activesupport-2.1.1 lib/active_support/core_ext/blank.rb
antfarm-0.3.0 rails/vendor/rails/activesupport/lib/active_support/core_ext/blank.rb
antfarm-0.4.0 rails/vendor/rails/activesupport/lib/active_support/core_ext/blank.rb
radiant-0.7.0 vendor/rails/activesupport/lib/active_support/core_ext/blank.rb
radiant-0.7.1 vendor/rails/activesupport/lib/active_support/core_ext/blank.rb