PubSub Setter

Helper methods on top of npm package pubsub-js. Set, cancel, and keep track of PubSub subscriptions. Each subscription gets a unique token; alerts developers to duplicate subscriptions. Allows setting many subcriptions with one function call.

Change from last version

setSubs() no longer creates hashed token for keeping track of subscriptions. Use pubsub.js's native methods instead. This fixes token already in use errors.

Methods

logSubs() : log the collection of subscriptions

setSubs([[msg, functionReference], ... ]) : set the PubSub subscriptions according to the array of msg-function pairs

cancelSub(msg, functionReference) : cancel the function's subscription to the specified message; remove from subscription collection

Example

var component = {
    init(){
        setSubs([                               // <= here set two PubSub subscriptions
            ['appReady', component.step2],
            ['step2Finished', component.step3]
        ]);
        this.step1();
    },
    step1(){
        // do stuff
        PubSub.publish('appReady', true);
    },
    step2(){
        // do stuff
        PubSub.publish('step2Finished', true);
    },
    step3(){
        // do some stuff
    }
};
 
component.init();