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Efficiency of premature return in a function

This is a situation I encounter frequently as an inexperienced programmer and am wondering about particularly for an ambitious, speed-intensive project of mine I'm trying to optimize. For the major C-like languages (C, objC, C++, Java, C#, etc) and their usual compilers, will these two functions ru...
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How to set a timer in android

What is the proper way to set a timer in android in order to kick off a task (a function that I create which does not change the UI)? Use this the Java way: http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Timer.html ...
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Installing Python packages from local file system folder to virtualenv with pip

... It do help. And we can use -i option of pip to treat it as a local PyPI. – diabloneo Jun 12 '15 at 7:37 ...
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Django: How to completely uninstall a Django app?

... Django < 1.7 has a handy management command that will give you the necessary SQL to drop all the tables for an app. See the sqlclear docs for more information. Basically, running ./manage.py sqlclear my_app_name gets you get the SQL statements t...
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How do you print in a Go test using the “testing” package?

... The structs testing.T and testing.B both have a .Log and .Logf method that sound to be what you are looking for. .Log and .Logf are similar to fmt.Print and fmt.Printf respectively. See more details here: http://golang.org/pkg/testing/#pkg-index ...
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Blurry text after using CSS transform: scale(); in Chrome

... I have have this problem a number of times and there seems to be 2 ways of fixing it (shown below). You can use either of these properties to fix the rendering, or both at the same time. Backface visibility hidden fixes the problem as it simplifies the animation to j...
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Configure Flask dev server to be visible across the network

... To set to a specific ip app.run(host="192.168.1.7",port=5010) handy if your pc has a few ip's – lxx Jan 2 '15 at 3:29 2 ...
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When to make a type non-movable in C++11?

...x objects. If std::mutex contained a native OS mutex type as a data member and the native type's address must stay fixed (because the OS maintains a list of pointers to its mutexes) then either std::mutex would have to store the native mutex type on the heap so it would stay at the same location whe...
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scrollIntoView Scrolls just too far

...s the wrong direction so all I had to do was change it from += 10 to -= 10 and now it's loading just right, thanks a lot for the help!!!! – Matthew Wilson Jul 10 '14 at 1:38 ...
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Why is Magento so slow? [closed]

...g, layout config, etc.) that involve building up giant XML trees in memory and then "querying" those same trees for information. This takes both memory (storing the trees) and CPU (parsing the trees). Some of these (especially the layout tree) are huge. Also, unless caching is on, these tree are ...