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How to get box-shadow on left & right sides only

... +50 NOTE: I suggest checking out @Hamish's answer below; it doesn't involve the imperfect "masking" in the solution described here. ...
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Further understanding setRetainInstance(true)

...w. (This is edited a bit to make it easier to read.) TestActivity@415a4a30: this() TestActivity@415a4a30: onCreate() TestActivity@415a4a30: Existing fragment not found. TestFragment{41583008}: this() TestFragment{41583008} TestFragment{41583008}: onAttach(TestActivity@415a4a30) TestFragment{415830...
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Get a random boolean in python?

...ter $ python -m timeit -s "import random" "random.choice([True, False])" 1000000 loops, best of 3: 0.904 usec per loop $ python -m timeit -s "import random" "random.choice((True, False))" 1000000 loops, best of 3: 0.846 usec per loop $ python -m timeit -s "import random" "random.getrandbits(1)" 10...
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Convert an image to grayscale in HTML/CSS

.../* Disable grayscale on hover */ img:hover { -webkit-filter: grayscale(0); filter: none; } <img src="http://lorempixel.com/400/200/"> What about Internet Explorer 10? You can use a polyfill like gray. ...
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HTML5 Email Validation

... 120 In HTML5 you can do like this: <form> <input type="email" placeholder="Enter your emai...
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.NET String.Format() to add commas in thousands place for a number

... String.Format("{0:n}", 1234); // Output: 1,234.00 String.Format("{0:n0}", 9876); // No digits after the decimal point. Output: 9,876 share | ...
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jQuery: How can i create a simple overlay?

... 202 An overlay is, simply put, a div that stays fixed on the screen (no matter if you scroll) and h...
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How does the socket API accept() function work?

...s going. Example to clarify things: Say we have a server at 192.168.1.1:80 and two clients, 10.0.0.1 and 10.0.0.2. 10.0.0.1 opens a connection on local port 1234 and connects to the server. Now the server has one socket identified as follows: 10.0.0.1:1234 - 192.168.1.1:80 Now 10.0.0.2 open...
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Remove an element from a Bash array

... 20 Answers 20 Active ...
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What are best practices for validating email addresses on iOS 2.0

... the cleanest way to validate an email address that a user enters on iOS 2.0? 13 Answers ...