In addition to Weibo, there is also WeChat
Please pay attention
WeChat public account
Shulou
2025-03-31 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
Share
Shulou(Shulou.com)05/31 Report--
Most people do not understand the knowledge points of this article "javascript Observer Mode how to achieve automatic refresh effect", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "javascript Observer Mode how to achieve automatic refresh effect" article.
The specific code is as follows
/ / author wangbinandi@gmail.comconst observable = obj = > {const observers = Symbol (); const set = function (target, key, value) {const result = Reflect.set (target, key, value); / / console.log ("set key:" + key); if (target [observers] .has (key)) {targets [observers] .get (key) .forEach (observer = > observer ());} return result } const get = function (target, key) {const result = Reflect.get (target, key); / / console.log ("get key:" + key); if (arguments.callee.caller) {if (! target [observers] .has (key)) {target [observers] .set (key, new Set ())} target [observers] .get (key) .add (arguments.callee.caller);} return result } obj [observers] = new Map (); / / string = > Set () return new Proxy (obj, {set, get});}; const autorun = fn = > fn (); var person = observable ({firstName: 'Matt', lastName:' Ruby', age: 18, weight: 50}); autorun () {console.log ('autorun.getAge:' + person.firstName +''+ person.age);}) Autorun (function () {console.log ('autorun.getName:' + person.firstName +''+ person.lastName);}); person.age = 19 person.weight = 55 person.lastName person.firstName = 'test';person.lastName =' MyLast';console.log (person.lastName); person.age = 20 The above is the content of this article on "how to achieve automatic refresh effect in javascript Observer Mode". I believe we all have some understanding. I hope the content shared by the editor will be helpful to you. If you want to know more related knowledge, please pay attention to the industry information channel.
Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.
Views: 0
*The comments in the above article only represent the author's personal views and do not represent the views and positions of this website. If you have more insights, please feel free to contribute and share.
Continue with the installation of the previous hadoop.First, install zookooper1. Decompress zookoope
"Every 5-10 years, there's a rare product, a really special, very unusual product that's the most un
© 2024 shulou.com SLNews company. All rights reserved.