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jQuery Tips and Tricks

... Creating an HTML Element and keeping a reference var newDiv = $("<div />"); newDiv.attr("id", "myNewDiv").appendTo("body"); /* Now whenever I want to append the new div I created, I can just reference it from the "newDiv" variable */ ...
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What is the difference between user variables and system variables?

What is the difference between user variables such as PATH , TMP , etc. and system variables? 5 Answers ...
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Is 'switch' faster than 'if'?

...ntly increase performance in some scenarios, is as general as a switch is, and does not result in greater generated code size. But to see that, your test code would need a LOT more branches to see any difference. To answer your specific questions: Clang generates one that looks like this: test_s...
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AngularJS : Where to use promises?

...to be a complete answer to your question, but hopefully this will help you and others when you try to read the documentation on the $q service. It took me a while to understand it. Let's set aside AngularJS for a moment and just consider the Facebook API calls. Both the API calls use a callback m...
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Perl build, unit testing, code coverage: A complete working example

...ackoverflow answers that I have found in regards to the Perl build process and unit testing and code coverage simply point me to CPAN for the documentation there. There's absolutely nothing wrong with pointing to CPAN modules because that's where the full documentation is supposed to reside. I've ...
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Difference between “managed” and “unmanaged”

...ead about it sometimes when talking about .NET, for example "managed code" and "unmanaged code" but I have no idea what they are and what are their differences. What are their difference, by definition? What are the consequences of using either of them? Does this distinction exist in .NET/Windows on...
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Why do I get “unresolved external symbol” errors when using templates? [duplicate]

When I write C++ code for a class using templates and split the code between a source (CPP) file and a header (H) file, I get a whole lot of "unresolved external symbol" errors when it comes to linking the final executible, despite the object file being correctly built and included in the linking. ...
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Django rest framework, use different serializers in the same ModelViewSet

I would like to provide two different serializers and yet be able to benefit from all the facilities of ModelViewSet : 6 A...
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Is a statically-typed full Lisp variant possible?

... Yes, it's very possible, although a standard HM-style type system is usually the wrong choice for most idiomatic Lisp/Scheme code. See Typed Racket for a recent language that is a "Full Lisp" (more like Scheme, actually) with static typing. ...
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Rails raw SQL example

How can I convert this code to raw sql and use in rails? Because When I deploy this code in heroku,there is a request timeout error.I think this will be faster if I use raw sql. ...