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What are free monads?
...sed me had I not met 'join' on the NICTA course and read haskellforall.com/2012/06/…. So for me, the trick to understanding is to read a lot of answers until it sinks in. (NICTA Reference: github.com/NICTA/course/blob/master/src/Course/Bind.hs)
– Martin Capodici
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Homebrew install specific version of formula?
...I incompatible) major versions of a certain piece of software. As of March 2012, Homebrew 0.9 provides a mechanism for this: brew tap & the homebrew versions repository.
That versions repository may include backports of older versions for several formulae. (Mostly only the large and famous ones...
Checking if an Android application is running in the background
...inal answer here for posterity's sake. This was the best available back in 2012, but now Android has proper support for this.
Original answer
The key is using ActivityLifecycleCallbacks (note that this requires Android API level 14 (Android 4.0)). Just check if the number of stopped activities is ...
How is __eq__ handled in Python and in what order?
...erloads ==, then a == b is the same as a is b.
From https://eev.ee/blog/2012/03/24/python-faq-equality/
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由12306.cn谈谈网站性能技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...些可惜了，这也就是铁路才干得出来这样的事了。
更新2012年9月27日
Alexa 统计的12306的PV （注：Alexa的PV定义是：一个用户在一天内对一个页面的多次点击只算一次）
文章转自： 酷 壳 – CoolShell.cn
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Difference between git checkout --track origin/branch and git checkout -b branch origin/branch
...t branch --set-upstream upstream/branch branch
# or, since 1.8.0 (October 2012)
git branch --set-upstream-to upstream/branch branch
# the short version remains the same:
git branch -u upstream/branch branch
It would also set the upstream for 'branch'.
(Note: git1.8.0 will deprecate git branch...
How did Google manage to do this? Slide ActionBar in Android application
...oject togther with an example app and is described over at coboltforge.com/2012/07/…. Thanks to @Scirocco for the initial idea!
– bk138
Jul 17 '12 at 23:02
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How do search engines deal with AngularJS applications?
...ll the steps outlined on Angular's documentation. http://www.yearofmoo.com/2012/11/angularjs-and-seo.html
Using this technique, the search engine sees the expanded HTML instead of the custom tags.
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Skip List vs. Binary Search Tree
...think Fizz' answer is more up-to-date (from 2015) rather than this answer (2012) and therefore should probably be the preferred answer by now.
– fnl
Jul 11 '17 at 10:45
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Override Java System.currentTimeMillis for testing time sensitive code
...his.
Complete story is in my blog post here:
http://virgo47.wordpress.com/2012/06/22/changing-system-time-in-java/
Complete handy class SystemTimeShifter is provided in the post. Class can be used in your tests, or it can be used as the first main class before your real main class very easily in o...