src code

instance method Enumerable#invoke 

Enumerable#invoke(methodName[, arg...]) → Array
  • methodName (String) – The name of the method to invoke.
  • args (?) – Optional arguments to pass to the method.

Invokes the same method, with the same arguments, for all items in a collection. Returns an array of the results of the method calls.

Examples
['hello', 'world'].invoke('toUpperCase');
// -> ['HELLO', 'WORLD']
 ['hello', 'world'].invoke('substring', 0, 3);
// -> ['hel', 'wor']
 $$('input').invoke('stopObserving', 'change');
// -> Stops observing the 'change' event on all input elements,
// returns an array of the element references.