Can someone please tell me what the following snippet
obj.send("#{method_name}")
is and does?
Can someone please tell me what the following snippet obj.send("#{method_name}") is and does?
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Can someone please tell me what the following snippet
obj.send("#{method_name}")
is and does?
sendsends a message to an object instance and its ancestors in class hierarchy until some method reacts (because its name matches the first argument).Practically speaking, those lines are equivalent:
Note that
sendbypasses visibility checks, so that you can call private methods, too (useful for unit testing).If there is really no variable before send, that means that the global Object is used: