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Benx Shen

/* Position Is Everything */ - Modern browser bugs explained in detail! - 1 views

www.positioniseverything.net

*i_learning* *推薦* *精華* css tutorial

shared by Benx Shen on 17 Aug 07 - Cached
Benx Shen

A re-introduction to JavaScript - MDC - 1 views

developer.mozilla.org/..._re-introduction_to_JavaScript

javascript tutorial intro *精華* *i_love_it*

shared by Benx Shen on 14 Oct 09 - No Cached
  • var name = o && o.getName();
  • var name = otherName || "default";
  • The first argument to apply() is the object that should be treated as 'this'.
  • ...9 more annotations...
  • apply() has a sister function named call, which again lets you set 'this' but takes an expanded argument list as opposed to an array.
  • Closures
  • A closure is the combination of a function and the scope object in which it was created. Closures let you save state - as such, they can often be used in place of objects.
  • An unfortunate side effect of closures is that they make it trivially easy to leak memory in Internet Explorer.
  • The above code sets up the element to turn red when it is clicked. It also creates a memory leak. Why? Because the reference to el is inadvertently caught in the closure created for the anonymous inner function. This creates a circular reference between a JavaScript object (the function) and a native object (el).
  • delete el;
  • var clickHandler = function() { this.style.backgroundColor = 'red'; } (function() { var el = document.getElementById('el'); el.onclick = clickHandler; })();
  • Surprisingly, one trick for breaking circular references introduced by a closure is to add another closure:
  • It's useful to start with an idea of the language's history. JavaScript was created in 1995 by Brendan Eich, an engineer at Netscape, and first released with Netscape 2 early in 1996. It was originally going to be called LiveScript, but was renamed in an ill-fated marketing decision to try to capitalise on the popularity of Sun Microsystem's Java language — despite the two having very little in common. This has been a source of confusion ever since.
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  • yahya_khk21121 on 12 Jul 17
Benx Shen

嵌入式Tomcat怎麼能讓Context自動reload-Tomcat-Java - 0 views

www.javaeye.com/19403

*精華* howto reload tomcat

shared by Benx Shen on 25 May 07 - Cached
Benx Shen

胡侃：面向对象思想的进化-FP-综合技术 -JavaEye做最棒的软件开发交流社区 - 0 views

www.javaeye.com/89241

*精華* oo 物件導向

shared by Benx Shen on 12 Jun 07 - Cached
  • 面向對象編程思想的提出已經不是幾年而是幾十年了，考查其思想的變化，一方面是對現有語言的一些評判，另一方面，也算是對前輩計算機科學家的緬懷。 ——題記 Kristen Nygaard在1962年發明的 Simula 語言現在被認同為世界上第一種明確實現面向對象編程中某些"必要"元素（比如 class）的語言。Simula 是從 Algol 發展來的，可以說，是一種增加了 class 這個數據類型的 Algol，並將參數傳遞的默認模式從"按名調用"換成了"按引用調用"，還提出了根據類型確定初始化過程的方法。 從 Simula 的時代開始，科學家們在解決軟件複雜度方面的思路開始"異常開闊"——當然也有資深的老派牛人們不這麼認為。比方說 Peter Norvig，寫了Design Patterns in Dynamic Programming一書來反駁。他認為設計模式早已體現在以 Lisp 為首的一批語言中了，根本不需要什麼面向對象。但我還是跟從偶像 Alan Kay 的觀點。某些時候，把一種特定的編程風格做進語言裡也是必要的。
Benx Shen

無類語言的OOP（JavaScript描述）-FP-綜合技術 -JavaEye做最棒的軟件開發交流社區 - 0 views

www.javaeye.com/89554

*推薦* *精華* javascript oop

shared by Benx Shen on 14 Jun 07 - Cached
  • 本文以 JavaScript 語言為例，介紹了無類面向對象語言中實現各種面向對象概念的方法。
  • 無類語言的OOP（JavaScript描述）
Benx Shen

框架為我所用，勿為框架所困 - 0 views

www.javaeye.com/79078

*推薦* *精華* framework programming

shared by Benx Shen on 22 May 07 - Cached
  • 我們已經被框架所包圍，我們已陷入了學習之苦。
  • 由於長期接受中國式教育，所以我們已經習慣了學習，學習幾個框架，對於國人來說也不是什麼大不了的事情，然而我們也發現，相對於我們的學習能力而言，我們的創造性顯得有些不足，我們有了繼承他人的能力，我們也缺乏一種顛覆他人的精神。
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