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What's the absurd function in Data.Void useful for?

... f -> onAwait $ \x -> foldConsumer onPure onAwait (f x) Yield x _ -> absurd x or alternatively, that you can ignore the yield case when dealing with consumers. This is the general version of this design pattern: use polymorphic data types and Void to get rid of possibilities when yo...
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Undo git reset --hard with uncommitted files in the staging area

...e of problems - --cached should be --cache, and I found that it didn't actually create the .git/lost-found directory. However, the following steps worked for me: git fsck --cache --unreachable $(git for-each-ref --format="%(objectname)") That should output all objects in the object database that...
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Android: install .apk programmatically [duplicate]

...ade this with help from Android download binary file problems and Install Application programmatically on Android . 5 ...
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Error - Unable to access the IIS metabase

After installing Visual Studio 2012 and opening my solution I get a series of errors in this form: 37 Answers ...
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How do I convert array of Objects into one Object in JavaScript?

... item.value, obj) ,{}); Here we benefit from comma operator, it evaluates all expression before comma and returns a last one(after last comma). So we don't copy obj each time, rather assigning new property to it. share ...
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Regex to check whether a string contains only numbers [duplicate]

... This one will allow also for signed and float numbers or empty string: var reg = /^-?\d*\.?\d*$/ If you don't want allow to empty string use this one: var reg = /^-?\d+\.?\d*$/ ...
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Developing C# on Linux

... is runnable on top of .Net framework. So as long as it is possible to install .Net framework in OS it can run the application. You got to aware of the version though ;) – Shiham Jun 26 '12 at 8:32 ...
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How do I programmatically determine operating system in Java?

...e operating system of the host that my Java program is running programmatically (for example: I would like to be able to load different properties based on whether I am on a Windows or Unix platform). What is the safest way to do this with 100% reliability? ...
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TaifunPlayer 扩展(Audio Player):音频播放器扩展,支持流媒体播放控制 ...

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Accessing the web page's HTTP Headers in JavaScript

... exactly equal to the current. Use the following JavaScript code to get all the HTTP headers by performing a get request: var req = new XMLHttpRequest(); req.open('GET', document.location, false); req.send(null); var headers = req.getAllResponseHeaders().toLowerCase(); alert(headers); ...