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Can someone explain the HTML5 aria-* attribute?

...know what the aria-* attributes are used for. What values can they have, and are they defined values or can I create my own values? ...
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Simple basic explanation of a Distributed Hash Table (DHT)

...e now independent nodes in a network. This gives a lot of fault-tolerance and reliability, and possibly some performance benefit, but it also throws up a lot of headaches. For example, what happens when a node leaves the network, by failing or otherwise? And how do you redistribute keys when a node...
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How can I have two fixed width columns with one flexible column in the center?

I'm trying to set up a flexbox layout with three columns where the left and right columns have a fixed width, and the center column flexes to fill the available space. ...
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Overload constructor for Scala's Case Classes?

...f apply(bar: Int) = new Foo(bar) } Foo(1, 2) Foo(1) In Scala 2.8, named and default parameters can often be used instead of overloading. case class Baz(bar: Int, baz: Int = 0) new Baz(1) Baz(1) share | ...
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python pip: force install ignoring dependencies

... @Connor there is no equivalent to "recommended packages" in any of the standard Python packaging tools: distutils, setuptools, pip. Setuptools (and pip) has "extras", but they must be explicitly selected and installed by the user. – shadowtalker Oct 18 '18 at...
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How do I check two or more conditions in one ?

... If you are using JSP 2.0 and above It will come with the EL support: so that you can write in plain english and use and with empty operators to write your test: <c:if test="${(empty object_1.attribute_A) and (empty object_2.attribute_B)}"> ...
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What are the Ruby File.open modes and options?

Ruby's File.open takes modes and options as arguments. Where do I find a complete list of modes and options? 2 Answers ...
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What data is stored in Ephemeral Storage of Amazon EC2 instance?

I am trying to stop a Amazon EC2 instance and get the warning message 4 Answers 4 ...
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Is it possible to adjust x,y position for titleLabel of UIButton?

...ignment:UIControlContentVerticalAlignmentTop]; //move text 10 pixels down and right [button setTitleEdgeInsets:UIEdgeInsetsMake(10.0f, 10.0f, 0.0f, 0.0f)]; And in Swift //make the buttons content appear in the top-left button.contentHorizontalAlignment = .Left button.contentVerticalAlignment = ....
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Remove leading and trailing spaces?

... You can use the strip() to remove trailing and leading spaces. >>> s = ' abd cde ' >>> s.strip() 'abd cde' Note: the internal spaces are preserved share | ...