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How to duplicate a whole line in Vim?
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and 2yy can be used to copy 2 lines (and for any other n)
– Amir Ali Akbari
Oct 9 '12 at 10:33
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Is AngularJS just for single-page applications (SPAs)?
...ooking at options to build the front end of an application we are creating and are trying to evaluate a tool that will work for us and give us the best platform to move forward.
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Regex empty string or email
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This regex pattern will match an empty string:
^$
And this will match (crudely) an email or an empty string:
(^$|^.*@.*\..*$)
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What is the difference between syntax and semantics in programming languages?
What is the difference between syntax and semantics in programming languages (like C, C++)?
10 Answers
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Which is better: … or …
...ype attribute at all? If you're using HTML5, no. Otherwise, yes. HTML 4.01 and XHTML 1.0 specifies the type attribute as required while HTML5 has it as optional, defaulting to text/javascript. HTML5 is now widely implemented, so if you use the HTML5 doctype, <script>...</script> is valid...
How to determine if a number is odd in JavaScript
...is will return 0 or 1 (or NaN if you feed it something that isn't a number and can't be coerced into one), which will work fine for most situations. But if you want a real true or false: return (num % 2) == 1;
– T.J. Crowder
Feb 16 '11 at 12:20
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Tuples( or arrays ) as Dictionary keys in C#
...alues to one string. I tried using arrays as keys, but that did not work, and I don't know what else to do. At this point I am considering making a Dictionary of Dictionaries of Dictionaries, but that would probably not be very pretty to look at, though it is how I would do it in javascript.
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Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
... there any way to select/manipulate CSS pseudo-elements such as ::before and ::after (and the old version with one semi-colon) using jQuery?
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Difference between DTO, VO, POJO, JavaBeans?
...JavaBean is a Java Object that is serializable, has a nullary constructor, and allows access to properties using getter and setter methods.
In order to function as a JavaBean class, an object class must obey certain conventions about method naming, construction, and behavior. These conventions ...
What is the difference between Google App Engine and Google Compute Engine?
...ine is a Platform-as-a-Service. It means that you simply deploy your code, and the platform does everything else for you. For example, if your app becomes very successful, App Engine will automatically create more instances to handle the increased volume.
Read more about App Engine
Compute Engine ...