javascript - $emit, $broadcast, prototypical inheritance -

still on basics of angularjs, understand concepts, however, looking @ custom events,

$emit

and

$broadcast

for nested controller..

according docs, $emit bubbles event, ie. passes chain, nested controllers,

my question, is, how different calling function parent controller (prototypical inheritance). or have miss understood something?

the thing is, can't direct parent, 1 want call. it's easy break code kind of anti-pattern.

and must agree

$scope.$parent.$parent.$parent.dosomething();

is pretty ugly.

instead can $emit event upwards, doesn't matter how far chain parent controller is, long listening , reacting.

this gives nice loose coupling between controllers, , acts message pump.

the same goes $broadcast, downwards instead, , here argue more important.

Plus Code