$emit() is a function that allows you to send out a message. The $emit method in AngularJS is used to dispatch an event name upwards and up to the $rootScope scope listeners. The $emit propagates the event name upwards and calls all registered listeners along the way. scope listeners and calls all registered listeners along the way.
$emit() is a function that allows you to send out a message. The $emit method in AngularJS is used to dispatch an event name upwards and up to the $rootScope scope listeners. The $emit propagates the event name upwards, towards $rootScope.
The directive uses $rootScope and $emit() to announce interval events. To listen for certain events, use $on(). The directive is unable to make advantage of scope. Because the emitted event never passes across the scope tree, $on() is used in this situation.
Without injecting $scope or $rootScope into the controller, it's impossible to register a $emit or $broadcast event. Using $scope variables and functions is bad practise because the controller instance is already injected into the $scope via the controllerAs syntax.
Learner's Ratings
4.1
Overall Rating
64%
16%
2%
11%
7%
Reviews
S
Samhitha R
5
Very clearly explained all the chapters and key points in Angular JS with perfect examples . Thank you very much. It is very helpful. Great work by learnvern and the tutors. Grateful to learnvern
N
NAVNEET MAHESWARI
5
EASY TO LEARN
P
Prabhat Yadav
5
Amazing course content and easy to understand.
A
Aparna K
5
Excellent
R
Rambo Krish
5
sds
S
Shraddha Naik
5
Good
K
Kijima
5
Very good
L
LAXMAN GOVIND RATHOD
5
The Advanced AngularJS Course was good and included all the topics to find a good job in my City.
V
V.phanindra babu
4
The Advanced AngularJS Course was good and included all the topics to find a good job in my City.
P
Prakriti
4
The Advanced AngularJS Course was good and included all the topics to find a good job in my City.
Show More
Recommended Courses
The Complete JavaScript Course - Beginner to Advance
Share a personalized message with your friends.