AMD pubsub

Moodle 3.6

What is this?

A simple module to do event subscription and publishing in JavaScript. It was added to avoid the need to use jQuery and the DOM.

Why would I use it?

Allows modules to communicate with one another indirectly without the need to include jQuery or touch the DOM.

Example

// Module A. require(['core/pubsub'], function(PubSub) {

   PubSub.publish('example-event', someData);

});

// Module B. require(['core/pubsub'], function(PubSub) {

   PubSub.subscribe('example-event', function(someData) {
       console.log('Received', someData);
   });

});