pubsub js

Wxpython learning] using the pubsub mechanism to update views Recently, I was busy working on a tool to generate xml packets for testing. In this tool, I have several panels that exist at the same time. One panel is used to manage data dictionaries. It can be edited. Other panels contain a display of these data dictionaries and cannot be edited. They reflect the same data source. At the same time, this tool can also import the transaction table accord

Pub/Sub publish and subscribe, pubsub publish and subscribeRelated commandsPSUBSCRIBEPUBLISHPUBSUBPUNSUBSCRIBESUBSCRIBEUNSUBSCRIBEPub/SubSUBSCRIBE, UNSUBSCRIBE and PUBLISH implement the Publish/Subscribe messaging paradigm where (citing Protocol) senders (publishers) are not programmed to send their messages to specific receivers (subscribers ). rather, published messages are characterized into channels, without knowledge of what (if any) subscribers

First, using the array cache Subscriber subscription message, when the Subscriber subscribes to the message, push the subscription message to the queue of the specified message, and when the publisher publishes the message, we traverse the execution push to the specified message queue for the callback event.varPubsub= (function(){ vareventobj={}; return{subscribe:function(EVENT,FN) {eventobj[event]=fn}, publish:function(event) {if(Eventobj[event]) eventobj[event] (); }, off:function(EVENT,FN)

Redis source code analysis (30th) --- pubsub publish and subscribe Mode Today I learned the term "Publish and subscribe mode" in Redis, which was first introduced to JMS (Java Message Service) java Message Service. I subscribe to these types of messages. Only when these types of messages are broadcast and sent Will I filter other messages directly, this ensures an efficient transmission efficiency. Next, let's take a look at how Redis achieves this pu

In recent time, the development of message bus feature was postponed, and some time was spent to optimize and reconstruct the original pubsub mechanism. Here is a record of the optimization process and how it has changed compared to the original design.The role of pubsub within the message busPubSub is primarily used within the message bus for real-time control of all online clients. Each client in the use

NANOMSG Experiment--pubsubThe Publish subscription model is a common feature provided by many message middleware. The message mechanism enables the message publisher and the message to receive (consume) peopleTo decouple. PubSub mode is also one of the message models directly supported by NANOMSG, so through the PubSub model experiment,At the same time, we also have a general understanding of the basic usag

Today, I learned about the tall noun in Redis, "Publish subscription Mode", the word Publish subscription mode was heard in the JMS (Java message Service) Java Messaging Service when I first heard about it. This ranking in a popular point of saying, is that I subscribe to this type of message, when only this kind of message broadcast sent, I will, other messages directly filtered to ensure an efficient transmission efficiency. Let's cut to the chase and learn how Redis implements this publish su

must use general javascript to implement a customized PubSub and retain DOM events: function DataBinder( object_id ) { // Create a simple PubSub object var pubSub = { callbacks: {}, on: function( msg, callback ) { this.callbacks[ msg ] = this.callbacks[ msg ] || []; this.callbacks[ msg ].push( callback ); }, publish: function( msg ) { this.callbacks[ m

javascript to implement a customized PubSub and retain DOM events: function DataBinder( object_id ) { // Create a simple PubSub object var pubSub = { callbacks: {}, on: function( msg, callback ) { this.callbacks[ msg ] = this.callbacks[ msg ] || []; this.callbacks[ msg ].push( callback ); }, publish: function( msg ) { this.callbacks[ msg ] = this.call

and preserve DOM events: function DataBinder (object_id) {//Create a simple PubSub object var PubSub = {callbacks: {}, On:function (msg , callback) {this.callbacks[msg] = this.callbacks[MSG] | | []; this.callbacks[msg].push (callback); }, Publish:function (msg) {this.callbacks[msg] = this.callbacks[MSG] | | [] for (var i =, Len = this.callbacks[msg].length i In addition to the trigger method

A period of time ago wrote a JS data validation, JS email verification, JS URL verification, JS length verification, JS digital verification, such as pop-up dialog box form but, now not very popular kind of very unfriendly way, so rewrite a, packaged better, more friendly la

Some time ago I wrote a pop-up dialog box for js data verification, js email verification, js url verification, js length verification, and js digital verification. However, the unfriendly method is not very popular, so I wrote a new one, which is encapsulated better and sha

. style. cursor = "default "; 3. Document. Links get all links on the page VaRLinks =Document. links;VaRArnames =[];For(VaRIInLinks) {arnames. Push (Links [I]);}For(VaRIInArnames) {document. Write (arnames [I]);} Usage: Use the firebug plug-in of Firefox to run on the Sina homepage. 4. js onchange event, try throw catch for Form Verification User Name Password Nbsp; Code 5. js shields all

, path, secure) {var cookies =This.getall (name);if (cookies) {delete Cookies[subname];This.setall (name, cookies,NULL, domain, path, secure); } } };Test:var Zhang = {name:"Zhang", Age:At height:"178cm", Weight:"66kg"}Set up a full cookie subcookieutil.setall ("Zhang", Zhang);Get a full cookievar Zhang = subcookieutil.getall ("Zhang"); alert (zhang.weight);66kgAdd a sub-cookie for Zhang Subcookieutil.set ( "Sport", //gets the child cookie alert (Subcookieutil.get ( "Zhang", " sport ")); //basket

I have been working on the web for some time. I want to share with you some experiences in loading JS files on the web. 1. First, let's talk about merging and compressing JS files. To facilitate centralized management of JS merge and compression, we create a JS. ashx file to specifically handle merge compression. Here

This article mainly introduces four js key points that Node. JS developers must understand. Node. js is a server-oriented framework based on Chrome's powerful V8JS engine. Although it is compiled by C ++, it and its applications run on JS. If you need it, you can refer to this article to summarize four Node.

About the difference between node. js and JavaScript, you know? Do you know about the similarities between node. js and JavaScript? If you do not know, then don't come to see this article, you are still waiting for what, see now First, let's look at the comparison between JS and node. JS: Javascript: ECMAScript (langu

This article will share with you the use of node. js is used to develop Weibo instances. After reading the nodejs Development guide, I found that many of the Code in the book is no longer available, because the express version has been upgraded, so today, I will try to develop Weibo instances and recommend them to you. I have been persistently engaged in front-end development before. In recent days, I started to learn nodejs. As a front-end developer,

This article mainly introduces what is Node. js? What are the advantages of Node. js ?, To try to explain what Node is. js, this article will briefly introduce some background information: the problem to be solved, how it works, how to run a simple application, and finally, what is a good solution for Node, if you need it, you can refer to Node as a server-side J

60 Seconds Verification Code Countdown JS codeJS Style CodeDocument.body.style.backgroundcolor= #ff0000; The style code in//JS does not allow "-" connectors, "-" after the first letter to uppercase, "-" omitted not written.Document.body.style.fontsize= "14px";//Note the difference between the JS style code and the CSS style code.Random movement of blocks up or do