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Professional.JavaScript.for.Web.Developers.3rd.Edition.Jan.2012 JavaScript is a garbage-collected language, meaning that the execution environment is
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posted @ 2016-10-07 23:17
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!function(){console.log(12);}() 执行 (!function(){console.log(12);}()) 执行 function(){console.log(12);}() 报错 +function(){console.log(12);}() 执行 ~function
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posted @ 2016-10-06 23:42
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35bool(false) --35bool(true) --135bool(false) --235bool(true) --3
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posted @ 2016-10-06 20:25
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小结: 1、 把 null 作为尚未创建的对象可以使用undefined和严格相等或不相等操作符来决定一个变量是否拥有值 undefined - JavaScript | MDN https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe
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posted @ 2016-10-06 20:15
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//对象是可变的键控集合, //“numbers, strings, booleans (true and false), null, and undefined” 不是对象的解释 The simple types of JavaScript are numbers, strings, boolea
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posted @ 2016-10-06 09:09
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posted @ 2016-10-05 22:51
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总结: 1、线性变换运算封闭,加法和乘法 2、特征向量经过线性变换后方向不变 https://en.wikipedia.org/wiki/Linear_map Examples of linear transformation matrices In two-dimensional space R2
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posted @ 2016-10-04 21:25
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w php利用递归函数实现无限级分类 - 杰枫Jeff - 博客园http://www.cnblogs.com/DeanChopper/p/4706071.html
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posted @ 2016-10-03 21:31
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1 DROP TABLE IF EXISTS `menu0910`; 2 CREATE TABLE `menu0910` ( 3 `id` bigint(20) NOT NULL AUTO_INCREMENT, 4 `menu` varchar(50) COLLATE utf8_unicode_ci DEFAULT '', 5 `parentid` bigint(20) D...
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posted @ 2016-10-02 23:36
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http://www.html5rocks.com/en/tutorials/internals/howbrowserswork/#Parser_Lexer_combination Grammars Parsing is based on the syntax rules the document
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posted @ 2016-10-01 22:31
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table-js-alert-table
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posted @ 2016-09-30 23:50
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Refactoring: Improving the Design of Existing Code Decomposing and Redistributing the Statement Method The obvious first target of my attention is the
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posted @ 2016-09-29 23:59
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posted @ 2016-09-28 23:58
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dynamic link library Dynamic-Link Libraries (Windows) https://msdn.microsoft.com/en-us/library/windows/desktop/ms682589(v=vs.85).aspx A dynamic-link l
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posted @ 2016-09-28 22:48
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COMPPUTER SCIENCE AN OVERVIEW 11th Edition
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posted @ 2016-09-27 23:22
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COMPPUTER SCIENCE AN OVERVIEW 11th Edition Finally we should note that XML allows the development of new markuplanguages that differ from HTML in that
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posted @ 2016-09-26 21:46
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http://www.chromium.org/Home/chromium-security/client-identification-mechanisms Chromium > Chromium Security > Technical analysis of client ident
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posted @ 2016-09-25 23:28
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小结: 1、 借助linkedlist,每次添加元素后,反转,取逆序 Implement Stack using Queues - LeetCodehttps://leetcode.com/problems/implement-stack-using-queues/solution/ Impleme
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posted @ 2016-09-25 23:20
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posted @ 2016-09-24 22:58
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生成浏览器唯一稳定 ID 的探索 - 知乎 https://zhuanlan.zhihu.com/p/400206593 生成浏览器唯一稳定 ID 的探索 作者:polozhang,腾讯 WXG 前端开发工程师 1. 背景 项目的 PC Web 端在不同浏览器有不同的登录态,同一浏览器多个窗口多个
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posted @ 2016-09-23 22:44
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COMPPUTER SCIENCE AN OVERVIEW 11th Edition firmware 固件 boot loader 引导程序 device driver 设备驱动程序 Basic Input/Output System BIOS 基本输入/输出设备 Extensible Firmw
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posted @ 2016-09-22 22:55
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COMPPUTER SCIENCE AN OVERVIEW 11th Edition One of the most fundamental concepts of modern operating systems is the distinction between a program and t
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posted @ 2016-09-22 00:32
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COMPPUTER SCIENCE AN OVERVIEW 11th Edition job 作业 batch processing 批处理 queue 队列 job queue 作业队列 first-in, first-out 先进先出 interactive processing 交互式处理 r
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posted @ 2016-09-21 22:58
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http://os.51cto.com/art/201204/328766.htm 针对PHP的网站主要存在下面几种攻击方式: 1、命令注入(Command Injection) 2、eval注入(Eval Injection) 3、客户端脚本攻击(Script Insertion) 4、跨网站脚本
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posted @ 2016-09-20 22:24
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http://os.51cto.com/art/201204/328888.htm
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posted @ 2016-09-20 11:57
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https://zh.wikipedia.org/wiki/反向代理 反向代理在计算机网络中是代理服务器的一种。服务器根据客户端的请求,从其关系的一组或多组后端服务器(如Web服务器)上获取资源,然后再将这些资源返回给客户端,客户端只会得知反向代理的IP地址,而不知道在代理服务器后面的服务器集群的存
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posted @ 2016-09-20 11:42
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https://en.wikipedia.org/wiki/Gateway_(telecommunications) In telecommunications, the term gateway refers to a piece of networking hardware that has t
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posted @ 2016-09-19 22:02
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http://www.laruence.com/2008/08/12/180.html
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posted @ 2016-09-19 21:49
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https://en.wikipedia.org/wiki/Server_Application_Programming_Interface In computing, Server Application Programming Interface (SAPI) is the direct mod
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posted @ 2016-09-19 21:46
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https://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol https://zh.wikipedia.org/wiki/简单邮件传输协议 1 <?php 2 echo 'wxmail'; 3 4 // The message 5 $mess
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posted @ 2016-09-18 22:03
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https://en.wikipedia.org/wiki/GUID_Partition_Table https://zh.wikipedia.org/wiki/全局唯一标识分区表 GUID Partition Table (GPT) is a standard for the layout of
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posted @ 2016-09-17 08:43
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https://en.wikipedia.org/wiki/Master_boot_record https://zh.wikipedia.org/wiki/主引导记录 A master boot record (MBR) is a special type of boot sector at th
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posted @ 2016-09-17 07:48
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https://en.wikipedia.org/wiki/Windows_Preinstallation_Environment https://zh.wikipedia.org/wiki/Windows预先安装环境 Windows Preinstallation Environment (als
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posted @ 2016-09-17 07:13
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案例 204 反馈图片 {"partner":"BingStructuredFeedback","feedbackType":"M{"partner":"BingStructuredFeedback","feedbackType":"MarkasAdult","vertical":"images",
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posted @ 2016-09-14 22:13
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https://yq.aliyun.com/articles/20667
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posted @ 2016-09-14 21:45
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http://shrinksafe.dojotoolkit.org/ a JavaScript interpreter
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posted @ 2016-09-14 21:41
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http://www.cnblogs.com/huangxincheng/archive/2012/07/21/2602375.html 一:场景: 1:现状 前几天我的一个大学同学负责的网站出现了严重的性能瓶颈,由于业务是写入和读取都是密集型,如果做缓存,时间间隔也只能在30s左 右,否则就会引起
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posted @ 2016-09-13 23:23
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Access-Control-Allow-Headers 响应首部 Access-Control-Allow-Headers 用于 preflight request (预检请求)中,列出了将会在正式请求的 Access-Control-Request-Headers 字段中出现的首部信息。 简单首
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posted @ 2016-09-13 12:24
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小结: 1、解耦数据交互层、展示层 By decoupling the data interchange layer from the presentation layer, Ajax allows Web pages, and by extension Web applications, to c
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posted @ 2016-09-13 12:11
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https://en.wikipedia.org/wiki/Ajax_(programming) https://zh.wikipedia.org/wiki/AJAX Ajax (also AJAX; /ˈeɪdʒæks/; short for asynchronous JavaScript and
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posted @ 2016-09-13 12:02
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