method

send

v1_8_7_330 - Show latest stable - 1 note - Class: Object

send(...) public

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"

Show source

/*
 *  call-seq:
 *     obj.send(symbol [, args...])        => obj
 *     obj.__send__(symbol [, args...])    => obj
 *  
 *  Invokes the method identified by _symbol_, passing it any
 *  arguments specified. You can use <code>\_\_send__</code> 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"
 */

static VALUE
rb_f_send(argc, argv, recv)
    int argc;
    VALUE *argv;
    VALUE recv;
{
    VALUE vid;

    if (argc == 0) rb_raise(rb_eArgError, "no method name given");

    vid = *argv++; argc--;
    PUSH_ITER(rb_block_given_p()?ITER_PRE:ITER_NOT);
    vid = rb_call(CLASS_OF(recv), recv, rb_to_id(vid), argc, argv, 1, Qundef);
    POP_ITER();

    return vid;
}

February 4, 2014 - (v1_9_3_392)

0 thanks

Alternative to :symbol

You can also pass string as an alternative to :symbol

k = Klass.new

k.send “hello”, “gentle”, “readers” #=> “Hello gentle readers”

send

Related methods

Alternative to :symbol