Mediator Pattern

Author: skillnull

Example/Mediator-Pattern.js

@@ -1,2 +1,26 @@
 // 中介者模式(Mediator Pattern)
 
+let mediator = (() => {
+ let msg = {}
+ return {
+ register: (type, action) => {
+ if (!msg[type]) msg[type] = []
+ msg[type].push(action)
+ },
+ send: (type) => {
+ if (msg[type]) {
+ for (let i = 0; i < msg[type].length; i++) {
+ msg[type][i] && msg[type][i]()
+ }
+ }
+ }
+ }
+})()
+
+mediator.register('demo', () => {
+ console.log('first')
+})
+mediator.register('demo', () => {
+ console.log('second')
+})
+mediator.send('demo')