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Mocha / Chai expect.to.throw not catching thrown errors

I'm having issues getting Chai's expect.to.throw to work in a test for my node.js app. The test keeps failing on the thrown error, but If I wrap the test case in try and catch and assert on the caught error, it works. ...
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Why are mutable structs “evil”?

...l times the remark that mutable structs are “evil” (like in the answer to this question ). 16 Answers ...
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When exactly is it leak safe to use (anonymous) inner classes?

... What you are asking is a pretty tough question. While you may think it is just one question, you are actually asking several questions at once. I'll do my best with the knowledge that I have to cover it and, hopefully, some others will join in to cover what...
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What's the difference between OpenID and OAuth?

I'm really trying to understand the difference between OpenID and OAuth? Maybe they're two totally separate things? 21 Answ...
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What reason is there to use null instead of undefined in JavaScript?

...riting JavaScript for quite a long time now, and I have never had a reason to use null . It seems that undefined is always preferable and serves the same purpose programmatically. What are some practical reasons to use null instead of undefined ? ...
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Convert PEM to PPK file format

Is there a way to convert PEM files to PPK files? (you may guess that Amazon EC2 gives me a PEM file, and I need to use the PPK format for SSH connectivity). ...
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What specific productivity gains do Vim/Emacs provide over GUI text editors?

...r flamebait or anything like that. I've been using Vim as my console-editor of choice for a couple months now (for editing configuration files while in my terminal), but I don't think I could stand it for my normal, every day work of writing web applications, which I do with a GUI text editor (wh...
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What are free monads?

... pop up every now and then for some time, but everyone just seems to use/discuss them without giving an explanation of what they are. So: what are free monads? (I'd say I'm familiar with monads and the Haskell basics, but have only a very rough knowledge of category theory.) ...
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How to use UIScrollView in Storyboard

I have a scroll view with content that is 1000px tall and would like to be able to lay it out for easy design on the storyboard. I know it can be done programmatically but I really want to be able to see it visually. Every time I put a scroll view on a view controller it won't scroll. Is it possib...
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How to force garbage collector to run?

Interviewer asked me about this today ...is there an answer ? 7 Answers 7 ...