Question

In Obj-C, the method to invoke can be decided at runtime using selector mechanism.

Is there anything similar in Ruby so that I can convert a method string into a method symbol at runtime and invoke it?

Answer 1

You want the send method:

obj.send(method_name), where method_name can be either a string or a symbol, will invoke the method with the given name on obj.

Any arguments you want to pass to the method, can be given as additional arguments to send, i.e. obj.send(method_name, argument1, argument2).