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What is the purpose of the reader monad?

...nstance Functor (Reader env) where fmap f (Reader g) = Reader $ f . g Now, to get a monad: instance Monad (Reader env) where return x = Reader (\_ -> x) (Reader f) >>= g = Reader $ \x -> runReader (g (f x)) x which is not so scary. ask is really simple: ask = Reader $ \x -...
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Animated loading image in picasso

...27#issuecomment-266276253 In addition to answer of @DBragion, try below. Now we can fix height and width! image_view.scaleType = ImageView.ScaleType.CENTER_INSIDE picasso.load(your_path) .fit() .centerCrop() .noFade() .placeholder(R.drawable. progress_animation) ...
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Get MIME type from filename extension

... Hey pplz MSFT has now implemented it! Check this – Shimmy Weitzhandler Jan 1 '13 at 5:32 6 ...
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How do I bottom-align grid elements in bootstrap fluid layout

...) it's fairly-well supported (all the major browsers support margin-top) Now the bad news: it requires jQuery it's not, as-written, responsive (sorry) share | improve this answer | ...
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What happens when a computer program runs?

I know the general theory but I can't fit in the details. 4 Answers 4 ...
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SLF4J: Class path contains multiple SLF4J bindings

... Run mvn dependency:tree in this project pom.xml parent folder, giving: Now choose the one you want to ignore (could consume a delicate endeavor I need more help on this) I decided not to use the one imported from spring-boot-starter-data-jpa (the top dependency) through spring-boot-starter and ...
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Creating a Radial Menu in CSS

...t it's another possible solution. I'm working on a compass interface right now that has a similar style of arc shaped buttons. I decided to develop it using Raphael and SVG. I created an arc shape in Illustrator, exported the SVG for it, grabbed the path definition for the arc from the exported SVG...
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What MIME type should I use for CSV?

...80 makes sure that the extension should be .csv. Nevertheless a you might know, it's not a strict requirement. You can break the implementation of the RFC 4180, but personally I would not do that, because it is disturbing the readability of the application. – Smokefoot ...
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Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4

...sn't involve overflow. The use of strength reduction was okay -- I don't know what the multiplier in the processor would do with (4*100000000) that would be different with (100000000+100000000+100000000+100000000), and falling back on "it's undefined -- who knows" is reasonable. But replacing what...
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Ruby Gem install Json fails on Mavericks and Xcode 5.1 - unknown argument: '-multiply_definedsuppres

... I did lots of stuff trying to solve this problem and I don't know exactly which solved but I installed the new ruby version, downloaded previous version of Command Line Tools (Late October) and executed the command on this answer. This solved my problems. In my case I was using boxes to...