Explanation of Cocoa @selector usage

Question

I\'m new to Cocoa/Cocoa Touch, and working through a development book. I\'ve come across situations where the @selector() operator is used. I\'m a bit lost on how and when the

Answer 1

You can use a selector to invoke a method on an object—this provides the basis for the implementation of the target-action design pattern in Cocoa.

[myObject performSelector:@selector(runMYmethod:) withObject:parameters];

is equivalent to:

[myObject runMYmethod:parameters];