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Make HTML5 video poster be same size as video itself

...ieve this (example); however, to have a background stretched to the height and the width of a video, you'll have to use an absolutely positioned <img> tag (example). It is also possible to set background-size to 100% 100% in browsers that support background-size (example). Update A better wa...
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Converting int to bytes in Python 3

... That's the way it was designed - and it makes sense because usually, you would call bytes on an iterable instead of a single integer: >>> bytes([3]) b'\x03' The docs state this, as well as the docstring for bytes: >>> help(bytes) ... ...
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Implications of foldr vs. foldl (or foldl')

...rstly, Real World Haskell , which I am reading, says to never use foldl and instead use foldl' . So I trust it. 7 Ans...
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Remove all special characters, punctuation and spaces from string

I need to remove all special characters, punctuation and spaces from a string so that I only have letters and numbers. 16 A...
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What is best tool to compare two SQL Server databases (schema and data)? [duplicate]

...ike to compare two SQL Server databases including schema (table structure) and data in tables too. What is best tool to do this? ...
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Use dynamic variable names in JavaScript

... Since ECMA-/Javascript is all about Objects and Contexts (which, are also somekind of Object), every variable is stored in a such called Variable- (or in case of a Function, Activation Object). So if you create variables like this: var a = 1, b = 2, c = 3; ...
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How to increment a NSNumber

... Update: FYI, I personally like BoltClock's and DarkDusts's one-line answers better. They're more concise, and don't require additional variables. In order to increment an NSNumber, you're going to have to get its value, increment that, and store it in a new NSNumbe...
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Android emulator and virtualbox cannot run at same time

Whenever I have Virtualbox running, I cannot start an Android emulator image (and vice versa). The error message in the AVD manager is ...
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Push existing project into Github

... This fixed my problem but I couldn't do command 4 git remote add origin <project url> saying command syntax not correct. I ignored it and it worked – Khalil Khalaf Jun 25 '16 at 2:33 ...
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What is an intuitive explanation of the Expectation Maximization technique? [closed]

... here. Suppose we have some data sampled from two different groups, red and blue: Here, we can see which data point belongs to the red or blue group. This makes it easy to find the parameters that characterise each group. For example, the mean of the red group is around 3, the mean of the blue...