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How do browsers pause/change Javascript when tab or window is not active?

...st is quite CPU intensive. requestAnimationFrame is not supported by IE 9- and Opera 12-. The test logs the actual time it takes for a setInterval and requestAnimationFrame to run in different browsers, and gives you the results in the form of a distribution. You can change the number of millisecon...
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Is there any way to put malicious code into a regular expression?

...ological patterns that go exponential — or even super‐exponential! — and so appear to take forever to solve. These may only show up on particular input data, but one can generally create one wherein this doesn’t matter. Which ones these are will depend somewhat on how smart the regex compil...
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Example of Named Pipes

... For someone who is new to IPC and Named Pipes, I found the following NuGet package to be a great help. GitHub: Named Pipe Wrapper for .NET 4.0 To use first install the package: PS> Install-Package NamedPipeWrapper Then an example server (copied fr...
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how do I initialize a float to its max/min value?

...? I want to search out the max/min of an array by simply iterating through and catching the largest. 5 Answers ...
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How do I catch a numpy warning like it's an exception (not just for testing)?

...rr(all='warn'), which will transform the printed warning in a real warning and you'll be able to use the above solution to localize this change in behaviour. Once you actually have a warning, you can use the warnings module to control how the warnings should be treated: >>> import warnin...
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How to structure a express.js application?

Is there a common convention for breaking up and modularizing the app.js file in an Express.js application? Or is it common to keep everything in a single file? ...
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Valid values for android:fontFamily and what they map to?

In the answer to this question the user lists values for android:fontFamily and 12 variants (see below). Where do these values come from? The documentation for android:fontFamily does not list this information in any place (I checked here , and here ). The strings are listed in the Android ...
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What is the claims in ASP .NET Identity

...re? There are two common authorization approaches that are based on Role and Claim. Role-Based Security A user gets assigned to one or more roles through which the user gets access rights. Also, by assigning a user to a role, the user immediately gets all the access rights defined for that role....
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Scrollable Menu with Bootstrap - Menu expanding its container when it should not

...llable menu with Bootstrap, but with that approach, the scrollable menu expands its container -- fiddle -- the non-scrollable menu, correctly, does not do this. ...
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What is the recommended approach towards multi-tenant databases in MongoDB?

...y tenants I'd have yet, but I would like to be able to scale into the thousands. 6 Answers ...