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How to prevent Node.js from exiting while waiting for a callback?

...re empty. A callback is added to an event queue when a call such as emmiter1.on('this_event',callback). has executed. This call is part of the code written by the module developer . If a module is a quick port from a synchronous/blocking version, this may not happen til some part of the oper...
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Differences between Perl and PHP [closed]

...to learn Perl 5 and as I have only used PHP until now, I wanted to know a bit about how the languages differ from each other. ...
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__proto__ VS. prototype in JavaScript

...e is the object that is used to build __proto__ when you create an object with new: ( new Foo ).__proto__ === Foo.prototype; ( new Foo ).prototype === undefined; share | improve this answer ...
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Container-fluid vs .container

...he viewport that the webpage is being viewed on, the container class gives its div a specific fixed width. These lines don't exist in any form for container-fluid, so its width changes every time the viewport width changes. So for example, say your browser window is 1000px wide. As it's greater tha...
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JSON formatter in C#?

...oking for a function that will take a string of Json as input and format it with line breaks and indentations. Validation would be a bonus, but isn't necessary, and I don't need to parse it into an object or anything. ...
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Why is Multiple Inheritance not allowed in Java or C#?

I know that multiple inheritance is not allowed in Java and C#. Many books just say, multiple inheritance is not allowed. But it can be implemented by using interfaces. Nothing is discussed about why it is not allowed. Can anybody tell me precisely why it is not allowed? ...
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What is the difference between the | and || or operators?

...ke the & and && operator, the double Operator is a "short-circuit" operator. For example: if(condition1 || condition2 || condition3) If condition1 is true, condition 2 and 3 will NOT be checked. if(condition1 | condition2 | condition3) This will check conditions 2 and 3, even if 1...
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How do I make text bold in HTML?

I'm trying to make some text bold using HTML, but I'm struggling to get it to work. 10 Answers ...
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Glorified classes in the Java language

...her classes. I'm talking about those classes that couldn't be implemented without special support from the compiler and/or JVM. ...
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What is the difference between XMLHttpRequest, jQuery.ajax, jQuery.post, jQuery.get

How can I find out which method is best for a situation? Can anybody provide some examples to know the difference in terms of functionality and performance? ...