method

enumerate

v2.3.8 - Show latest stable - 0 notes - Class: ActionView::Helpers::JavaScriptCollectionProxy

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What's this?

enumerate(enumerable, options = {}, &block) private

Options

  * variable - name of the variable to set the result of the enumeration to
  * method_args - array of the javascript enumeration method args that occur before the function
  * yield_args - array of the javascript yield args
  * return - true if the enumeration should return the last statement

Show source

# File actionpack/lib/action_view/helpers/prototype_helper.rb, line 1267
        def enumerate(enumerable, options = {}, &block)
          options[:method_args] ||= []
          options[:yield_args]  ||= []
          yield_args  = options[:yield_args] * ', '
          method_args = arguments_for_call options[:method_args] # foo, bar, function
          method_args << ', ' unless method_args.blank?
          add_variable_assignment!(options[:variable]) if options[:variable]
          append_enumerable_function!("#{enumerable.to_s.camelize(:lower)}(#{method_args}function(#{yield_args}) {")
          # only yield as many params as were passed in the block
          yield(*options[:yield_args].collect { |p| JavaScriptVariableProxy.new(@generator, p) }[0..block.arity-1])
          add_return_statement! if options[:return]
          @generator << '});'
        end

enumerate

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