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Android Camera Preview Stretched

I've been working on making my custom camera activity on Android, but when rotating the camera, the aspect ratio of the surface view gets messed up. ...
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What does this symbol mean in JavaScript?

This is a collection of questions that come up every now and then about syntax in JavaScript. This is also a Community Wiki, so everyone is invited to participate in maintaining this list. ...
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Structs versus classes

...e small ones, only with 2 or 3 properties. I'll put them in a generic list and when they are, I'll loop them and check value a and maybe update value b . ...
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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)

I was going through the exercises in Ruby Koans and I was struck by the following Ruby quirk that I found really unexplainable: ...
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What is “callback hell” and how and why does RX solve it?

...xplains what is a "callback hell" for someone who does not know JavaScript and node.js ? 8 Answers ...
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Is JavaScript supported in an email message?

...s Old clients, such as Lotus Notes, Mozilla Thunderbird, Outlook Express, and Windows Live Mail all seem to have supported some sort of JavaScript execution. Nothing else does. It seems like a bad idea security-wise, so I would expect this to be a feature that won't always be around, even in thes...
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Open files in 'rt' and 'wt' modes

Several times here on SO I've seen people using rt and wt modes for reading and writing files. 4 Answers ...
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Regular expression to match numbers with or without commas and decimals in text

I'm trying to locate and replace all numbers in a body of text. I've found a few example regex's, which almost solve the problem, but none are perfect yet. The problem I have is that the numbers in my text may or may not have decimals and commas. For example: ...
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What is a “cache-friendly” code?

What is the difference between " cache unfriendly code " and the " cache friendly " code? 9 Answers ...
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What exactly are “spin-locks”?

...ritical sections etc), operating system puts your thread in the WAIT state and preempts it by scheduling other threads on the same core. This has a performance penalty if the wait time is really short, because your thread now has to wait for a preemption to receive CPU time again. Besides, kernel ob...