无为清净楼资源网 Design By www.qnjia.com
本文实例讲述了JavaScript之AOP编程。分享给大家供大家参考。具体如下:
/* // aop({options}); // By: adamchow2326@yahoo.com.au // Version: 1.0 // Simple aspect oriented programming module // support Aspect before, after and around // usage: aop({ context: myObject, // scope context of the target function. target: "test", // target function name before: function() { // before function will be run before the target function console.log("aop before"); }, after: function() { // after function will be run after the target function console.log("aop after"); }, around: function() { // around function will be run before and after the target function console.log("aop around"); } }); */ var aop = (function() { var options = {}, context = window, oFn, oFnArg, targetFn, targetFnSelector, beforeFn, afterFn, aroundFn, cloneFn = function(Fn) { if (typeof Fn === "function") { return eval('[' +Fn.toString()+ ']')[0]; } return null; }, checkContext = function() { if (options.context) { context = options.context; } if (typeof context[(options.target).name] === "function") { targetFnSelector = (options.target).name; targetFn = context[targetFnSelector]; } else if (typeof context[options.target] === "function") { targetFnSelector = options.target; targetFn = context[targetFnSelector]; } if (targetFn) { oFn = cloneFn(targetFn); oFnArg = new Array(targetFn.length); return true; } else { return false; } }, run = function() { context[targetFnSelector] = function(oFnArg) { if (aroundFn){ aroundFn.apply(this, arguments); } if (beforeFn){ beforeFn.apply(this, arguments); // 'this' is context } oFn.apply(this, arguments); if (afterFn){ afterFn.apply(this, arguments); // 'this' is context } if (aroundFn){ aroundFn.apply(this, arguments); } }; }; return function(opt){ if (opt && typeof opt === "object" && !opt.length) { options = opt; if (options.target && checkContext()) { if (options.before && typeof options.before === "function") { beforeFn = options.before; } if (options.after && typeof options.after === "function") { afterFn = options.after; } if (options.around && typeof options.after === "function") { aroundFn = options.around; } run(); } } }; })(); // test examples // ----------------- aop modify global function ---------------// function test(name, age) { console.log("test fn. name = " + name + " age: " + age); } aop({ target: "test", before: function() { console.log("aop before"); }, after: function() { console.log("aop after"); }, around: function() { console.log("aop around"); } }); // run test("adam", 6); // ----------------- aop test modify method in an object ---------------// var myobj = { myName: "testName", sayName: function() { console.log(this.myName); }, childObj: { age: 6, say: function() { console.log(this.age); } } }; aop({ context: myobj, target: "sayName", before: function() { console.log("aop before say name = " + this.myName); }, after: function() { console.log("aop after say name = " + this.myName); }, around: function() { console.log("aop around say name = " + this.myName); } }); // run myobj.sayName(); aop({ context: myobj.childObj, target: "say", before: function() { console.log("aop before say name = " + this.age); }, after: function() { console.log("aop after say name = " + this.age); }, around: function() { console.log("aop around say name = " + this.age); } }); myobj.childObj.say();
希望本文所述对大家的javascript程序设计有所帮助。
标签:
JavaScript,AOP编程
无为清净楼资源网 Design By www.qnjia.com
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
无为清净楼资源网 Design By www.qnjia.com
暂无评论...
更新日志
2024年11月20日
2024年11月20日
- 柏菲·珞叔作品集《金色大厅2》限量开盘母带ORMCD[低速原抓WAV+CUE]
- Gareth.T《sad songs(Explicit)》[320K/MP3][29.03MB]
- Gareth.T《sad songs(Explicit)》[FLAC/分轨][152.85MB]
- 证声音乐图书馆《海风摇曳·盛夏爵士曲》[320K/MP3][63.06MB]
- 龚玥《金装龚玥HQCD》头版限量[WAV分轨]
- 李小春《吻别》萨克斯演奏经典[原抓WAV+CUE]
- 齐秦《辉煌30年24K珍藏版》2CD[WAV+CUE]
- 证声音乐图书馆《海风摇曳·盛夏爵士曲》[FLAC/分轨][321.47MB]
- 群星 《世界经典汽车音乐》 [WAV分轨][1G]
- 冷漠.2011 《冷漠的爱DSD》[WAV+CUE][1.2G]
- 陈明《流金岁月精逊【中唱】【WAV+CUE】
- 群星《Jazz-Ladies1-2爵士女伶1-2》HQCD/2CD[原抓WAV+CUE]
- 群星《美女私房歌》(黑胶)[WAV分轨]
- 郑源.2009《试音天碟》24BIT-96KHZ[WAV+CUE][1.2G]
- 飞利浦试音碟 《环球群星监听录》SACD香港版[WAV+CUE][1.1G]