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Should I always use a parallel stream when possible?

With Java 8 and lambdas it's easy to iterate over collections as streams, and just as easy to use a parallel stream. Two examples from the docs , the second one using parallelStream: ...
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Why do people say that Ruby is slow? [closed]

I like Ruby on Rails and I use it for all my web development projects. A few years ago there was a lot of talk about Rails being a memory hog and about how it didn't scale very well but these suggestions were put to bed by Gregg Pollack here. ...
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What characters are allowed in an email address?

... See RFC 5322: Internet Message Format and, to a lesser extent, RFC 5321: Simple Mail Transfer Protocol. RFC 822 also covers email addresses, but it deals mostly with its structure: addr-spec = local-part "@" domain ; global address local-part ...
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How can I profile C++ code running on Linux?

... a profiler, use one of the suggested ones. However, if you're in a hurry and you can manually interrupt your program under the debugger while it's being subjectively slow, there's a simple way to find performance problems. Just halt it several times, and each time look at the call stack. If there...
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How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)

My version of node is always v0.6.1-pre even after I install brew node and NVM install v0.6.19. 28 Answers ...
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What is the HMVC pattern?

...n instead of MVC as version 2.x does. The page about this in Kohana's docs and the one on wikipedia didn't really give me a clear idea. ...
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What's the difference between backtracking and depth first search?

What's the difference between backtracking and depth first search? 13 Answers 13 ...
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Managing Sessions in Node.js? [closed]

.../ It seems to be the most used node.js framework. Is like Sinatra for Ruby and runs on top of connect. Geddy: http://geddyjs.org/ If you want to do more complex WebApps, Geddy is the one you choose. Is like Rails for Ruby. ...
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Why do we use Base64?

... Your first mistake is thinking that ASCII encoding and Base64 encoding are interchangeable. They are not. They are used for different purposes. When you encode text in ASCII, you start with a text string and convert it to a sequence of bytes. When you encode data in Base64,...
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How to handle :java.util.concurrent.TimeoutException: android.os.BinderProxy.finalize() timed out af

...mber of TimeoutExceptions in GcWatcher.finalize, BinderProxy.finalize , and PlainSocketImpl.finalize . 90+% of them happen on Android 4.3. We're getting reports of this from Crittercism from users out in the field. ...