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prevent property from being serialized in web API

...t you want: First way: Decorate your field with JsonProperty attribute in order to skip the serialization of that field if it is null. public class Foo { public int Id { get; set; } public string Name { get; set; } [JsonProperty(NullValueHandling = NullValueHandling.Ignore)] publi...
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What is the difference between Ruby 1.8 and Ruby 1.9

...m) end svn.ruby-lang.org/repos/ruby/trunk/lib/rake.rb Hash Keys Now Unordered Ruby 1.9 irb(main):001:0> {:a=>"a", :c=>"c", :b=>"b"} => {:a=>"a", :c=>"c", :b=>"b"} Ruby 1.8.6 irb(main):001:0> {:a=>"a", :c=>"c", :b=>"b"} => {:a=>"a", :b=>"b", :c=&...
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How to remove old Docker containers

...n this thread): docker system prune will delete ALL unused data (i.e., in order: containers stopped, volumes without containers and images with no containers). See PR 26108 and commit 86de7c0, which are introducing a few new commands to help facilitate visualizing how much space the Docker daemon ...
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PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate

...on performance as Hibenate still makes 2 queries, we are just changing the order of queries. – Vikky Aug 30 '19 at 12:13 ...
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Git commit in terminal opens VIM, but can't get back to terminal

... Simply doing the vim "save and quit" command :wq should do the trick. In order to have Git open it in another editor, you need to change the Git core.editor setting to a command which runs the editor you want. git config --global core.editor "command to start sublime text 2" ...
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What are some good Python ORM solutions? [closed]

...ment. I don't understand the logic. How does "hard to find instructions on ORDER BY DESC in the docs" imply "bad for active record pattern"? – jpmc26 Jan 10 '14 at 0:27 ...
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How to use classes from .jar files?

...ram in a jar file, and include all the required jars within that. Then, in order to execute your jar, like, java -jar my_program.jar you should have a META-INF/MANIFEST.MF file in your jar. See here, for how-to. share ...
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What are the typical reasons Javascript developed on Firefox fails on IE? [closed]

...nt.scrollTop || window.pageYOffset || 0; return [x, y]; }; In order to get the position of the mouse cursor, evt.clientX and evt.clientY in mousemove events will give the position relative to the document without adding the scroll position so the previous function will need to be incorp...
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YouTube API to fetch all videos on a channel

...ey={your_key_here}&channelId={channel_id_here}&part=snippet,id&order=date&maxResults=20 After that you will receive a JSON with video ids and details, and you can construct your video URL like this: http://www.youtube.com/watch?v={video_id_here} ...
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C# 4.0 optional out/ref arguments

...lOutParameter(&MyInteger); } // pass in the address of MyInteger. In order to get this to compile, you will need to enable unsafe code in the project options. This is a really hacky solution that usually shouldn't be used, but if you for some strange, arcane, mysterious, management-inspired de...