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Best way to check if a Data Table has a null value in it

... I usually create an "Extensions" folder in some common library or in my DAL. Create a file called "DataTableExtensions.cs" and add that method. Next you would just add "using Name.Space.Extensions" to your cs files and have access...
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What's “tools:context” in Android layout files?

... That attribute is basically the persistence for the "Associated Activity" selection above the layout. At runtime, a layout is always associated with an activity. It can of course be associated with more than one, but at least one. In the tool, we ...
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What is the difference between Ruby 1.8 and Ruby 1.9

... Sam's slides. The slideshow is less overwhelming to review, but having it all laid out in a list like this is also helpful. Ruby 1.9 - Major Features Performance Threads/Fibers Encoding/Unicode gems is (mostly) built-in now if statements do not introduce scope in Ruby. What's changed? Single ...
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How to convert JSON to a Ruby hash

... Assuming you have a JSON hash hanging around somewhere, to automatically convert it into something like WarHog's version, wrap your JSON hash contents in %q{hsh} tags. This seems to automatically add all the necessary escaped text like in WarHog's answer. ...
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What is the motivation for bringing Symbols to ES6?

... Most languages (all mainstream ones afaik) provide some mechanism, usually reflection, to get access to private anyway. – Esailija May 14 '14 at 10:58 ...
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Is it possible to group projects in Eclipse?

... focus on a particular area of a project, activate them through Mylin; a really powerful tool indeed use the basic concept of workspace which allows you to work on many projects and relate them (via the Build path "Projects" tab, and "Java EE Module Dependencies") so that when you need resources fro...
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When to Redis? When to MongoDB? [closed]

... and MongoDB. I know they are different; the performance and the API is totally different. 10 Answers ...
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Javascript: get package.json data in gulpfile.js

...intend to read/modify/read-again). That does not make it a bad solution in all cases though. The OP explicitly mentioned he wanted to read information out of it. – Mangled Deutz Apr 14 '15 at 17:56 ...
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How to get std::vector pointer to the raw data?

...he iterator returned by begin() (as the compiler warns, this is not technically allowed because something.begin() is an rvalue expression, so its address cannot be taken). Assuming the container has at least one element in it, you need to get the address of the initial element of the container, whi...
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How to get root access on Android emulator?

I have All Android SDK versions(from 1.5 to 2.3.3), and I tried many methods for getting root in Android emulator. I don't use any Android device and test everything on emulator(AVD). ...