Javascript Closures - 0 views
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Closure A "closure" is an expression (typically a function) that can have free variables together with an environment that binds those variables (that "closes" the expression).
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Example 2: Associating Functions with Object Instance Methods
Floatutorial: Float basics - 0 views
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When you float an element it becomes a block box.
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You should always set a width on floated items (except if applied directly to an image - which has implicit width). W3C's Cascading Style Sheets, level 2, CSS2 Specifications states: "A floated box must have an explicit width..." If no width is set, the results can be unpredictable.
Luke - Lucene Index Toolbox - 0 views
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Luke is a handy development and diagnostic tool, which accesses already existing Lucene indexes and allows you to display and modify their contents in several ways: browse by document number, or by term view documents / copy to clipboard retrieve a ranked list of most frequent terms execute a search, and browse the results analyze search results selectively delete documents from the index reconstruct the original document fields, edit them and re-insert to the index optimize indexes and much more...
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Preventing Java's java.lang.OutOfMemoryError: PermGen space failure | Eric's Agile Answers - 0 views
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The "OutOfMemoryError: PermGen space" message is normally encountered during development activites where a long-running JVM is asked to load/unload builds.
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The message is a symptom of an incomplete garbage collection sweep where resources are not properly released upon unload/restart. There is no shortage of debate (Hibernate forum, Sun forum, Spring Framework forum ) regarding which codebase is responsible for this symptom, but the finger of blame has been pointed at CGLIB, Hibernate, Tomcat, and even Sun's JVM.
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In my experience, the most pain-free method of resolving this issue is to switch from Sun's JDK implementation to BEA's freely available JRockit implementation.
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又是一位和我一樣都慘遭 "PermGen Space" 錯誤的開發者了!
很奇怪,為何會發生這樣的錯誤呢?
其中這篇文章所提到的技術,恰巧都是我現在所發生問題的架構,像是 Hibernate, Spring, Tomcat 等,還有 Sun JVM.... Orz
比較特別的是,多數提供的解決方式,都是去調整 JVM 的設定(-XX:MaxPermSize=256m)。這位老兄則是採用了 BEA JRockit 版本的 JVM 解決此問題,他表示至少這招對他是管用的!
不過,軟體開發很多時候都會發生這種「魔咒」,這種狀況底下,就好像一個並無可醫的人,只好嘗試各種偏方了! -
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When Runtime.exec() won't - Java World - 0 views
Pastie - 0 views
HOW-TO: Debug JavaScript in Internet Explorer - 0 views
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HOW-TO: Debug JavaScript in Internet Explorer The best tool for debugging JavaScript on Internet Explorer is the Microsoft Script Editor, a free component of Microsoft Office XP/2003.
ClipX - 0 views
Javascript - Event order - 0 views
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When you use event capturing | | ---------------| |----------------- | element1 | | | | -----------| |----------- | | |element2 \ / | | | ------------------------- | | Event CAPTURING | ----------------------------------- the event handler of element1 fires first, the event handler of element2 fires last. Event bubbling When you use event bubbling / \ ---------------| |----------------- | element1 | | | | -----------| |----------- | | |element2 | | | | | ------------------------- | | Event BUBBLING | ----------------------------------- the event handler of element2 fires first, the event handler of element1 fires last.
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addEventListener() method explained on the Advanced models page. If its last argument is true the event handler is set for the capturing phase, if it is false the event handler is set for the bubbling phase.
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In the Microsoft model you must set the event’s cancelBubble property to true. window.event.cancelBubble = true In the W3C model you must call the event’s stopPropagation() method. e.stopPropagation()
gotchas : Java Glossary - 0 views
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A gotcha is a nasty surprise in the Java language or the standard libraries.
CrossLoop - Simple Secure Screen Sharing - 4 views
How I Explained REST to My Wife - 0 views
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Machines don't have a universal noun - that's why they suck.
FileMenu Tools - 0 views
jmesa - Google Code - 0 views
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JMesa is a dynamic HTML table that allows you to filter, sort, paginate, export and edit your data however you need to. What you will find here is a carefully thought out API that is very easy to use and can be modified for your own needs. Note: JMesa requires JDK1.5 or above.
Groovy - Regular Expressions - 0 views
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Groovy supports regular expressions natively using the ~"pattern" expression
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// lets create a regex Pattern def pattern = ~/foo/ assert pattern instanceof Pattern
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Groovy also supports the =~ (create Matcher) and ==~ (matches regex) operators.
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