Dynamic method calling in Ruby

Question

As far as I am aware there are three ways to dynamically call a method in Ruby:

Method 1:

s = SomeObject.new
method = s.method(:dynamic_method)
metho         


        

Answer 1

I updated the benchmark from @Stefan to check if there are some speed improvements when saving reference to method. But again – send is much faster than call

require 'benchmark'

class Foo
  def bar; end
end

foo = Foo.new
foo_bar = foo.method(:bar)

Benchmark.bm(4) do |b|
  b.report("send") { 1_000_000.times { foo.send(:bar) } }
  b.report("call") { 1_000_000.times { foo_bar.call } }
end

These are the results:

           user     system      total        real
send   0.080000   0.000000   0.080000 (  0.088685)
call   0.110000   0.000000   0.110000 (  0.108249)

So send seems to be the one to take.