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Why does my application spend 24% of its life doing a null check?

I've got a performance critical binary decision tree, and I'd like to focus this question on a single line of code. The code for the binary tree iterator is below with the results from running performance analysis against it. ...
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Is there any way to call a function periodically in JavaScript?

Is there any way to call a function periodically in JavaScript? 9 Answers 9 ...
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How to compare type of an object in Python?

Basically I want to do this: 14 Answers 14 ...
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When writing a directive in AngularJS, how do I decide if I need no new scope, a new child scope, or

I'm looking for some guidelines that one can use to help determine which type of scope to use when writing a new directive. Ideally, I'd like something similar to a flowchart that walks me through a bunch of questions and out pops the correct answer – no new new scope, new child scope, or new isol...
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Errors: “INSERT EXEC statement cannot be nested.” and “Cannot use the ROLLBACK statement within an I

I have three stored procedures Sp1 , Sp2 and Sp3 . 12 Answers 12 ...
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Prevent linebreak after

Is there a way to prevent a line break after a div with css? 13 Answers 13 ...
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Storing Images in DB - Yea or Nay?

So I'm using an app that stores images heavily in the DB. What's your outlook on this? I'm more of a type to store the location in the filesystem, than store it directly in the DB. ...
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Get the first item from an iterable that matches a condition

I would like to get the first item from a list matching a condition. It's important that the resulting method not process the entire list, which could be quite large. For example, the following function is adequate: ...
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Thread vs ThreadPool

What is the difference between using a new thread and using a thread from the thread pool? What performance benefits are there and why should I consider using a thread from the pool rather than one I've explicitly created? I'm thinking specifically of .NET here, but general examples are fine. ...
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Random record from MongoDB

I am looking to get a random record from a huge (100 million record) mongodb . 26 Answers ...