Learning JavaScript Design Patterns 筆記 3

Publish/Subscribe Implementations

pubsubz/pubsubz.js

key point:
publish(topic, args): 執行特定topic的所有subscriber的func，並將參數args傳入
subscribe(topic, func): 將特定topic跟func綁定，以便publish中使用
unsubscribe: 移除 subscriber

Usage:

// 要綁定的 func
var mlog = function (t, d) { console.log(t+ ": " + d);};
// 綁定 topic (inbox/newMessage) 跟 mlog
var subscription = pubsub.subscribe("messagee", mlog);
// publish !
pubsub.publish("message", "hello world!");
pubsub.publish("message", ["test", "a", "b", "c"]);