Self.__send__(:test_method) passing parameter to this

Ruby
1

Hi
How can I pass parameters to the method, test_method And also would
like to know what is __ in send ?

Thanks

2

Sijo Kg wrote:

Hi
How can I pass parameters to the method

foo.__send__(:test_method, arg1, arg2)

Or if the args are in an array already:

foo.__send__(:test_method, *args)

And also would
like to know what is __ in send ?

It’s two underscores :slight_smile:

Here’s what “ri send” says:

-------------------------------------------------------- Object#send
obj.send(symbol [, args…]) => obj
obj.send(symbol [, args…]) => obj

 Invokes the method identified by _symbol_, passing it any arguments
 specified. You can use +__send__+ if the name +send+ clashes with
 an existing method in _obj_.

    class Klass
      def hello(*args)
        "Hello " + args.join(' ')
      end
    end
    k = Klass.new
    k.send :hello, "gentle", "readers"   #=> "Hello gentle readers"
3

Hi
Thanks for your reply