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Browsers' default CSS for HTML elements

... A GitHub repository of all W3C HTML spec and vendor default CSS stylesheets can be found here 1. Default Styles for Firefox 2. Default Styles for Internet Explorer 3. Default Styles for Chrome / Webkit 4. Default Styles for Opera 5...
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What are the disadvantages of using persistent connection in PDO

In PDO, a connection can be made persistent using the PDO::ATTR_PERSISTENT attribute. According to the php manual - 8 An...
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SQL Server CTE and recursion example

... with recursion. I was just reading an article on it. This article shows employee info with the help of Sql server CTE and recursion. It is basically showing employees and their manager info. I am not able to understand how this query works. Here is the query: ...
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What is WEB-INF used for in a Java EE web application?

I'm working on a Java EE web application with the following source code structure: 5 Answers ...
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Javascript when to use prototypes

I'd like to understand when it is appropriate to use prototype methods in js. Should they always be used? Or are there cases where using them is not preferred and/or incurs a performance penalty? ...
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When to use , tag files, composite components and/or custom components?

I started using JSF 2.0 with Facelets recently and got puzzled by new composite components knowing existing <ui:include> and other templating techniques offered by Facelets 1.x. ...
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Private vs Protected - Visibility Good-Practice Concern [closed]

...you're not on the right track. A good rule of thumb is: make everything as private as possible. This makes your class more encapsulated, and allows for changing the internals of the class without affecting the code using your class. If you design your class to be inheritable, then carefully choose...
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How do I split a string on a delimiter in Bash?

... You can set the internal field separator (IFS) variable, and then let it parse into an array. When this happens in a command, then the assignment to IFS only takes place to that single command's environment (to read ). It then parses the input according to t...
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How to search file text for a pattern and replace it with a given value

I'm looking for a script to search a file (or list of files) for a pattern and, if found, replace that pattern with a given value. ...
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How do HTML parses work if they're not using regexp?

I see questions every day asking how to parse or extract something from some HTML string and the first answer/comment is always "Don't use RegEx to parse HTML, lest you feel the wrath!" (that last part is sometimes omitted). ...