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Saving an Object (Data persistence)

...advantage is you don't need to know how many object instances are saved in order to load them back later (although doing so without that information is possible, it requires some slightly specialized code). See the answers to the related question Saving and loading multiple objects in pickle file? f...
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How do I change Bootstrap 3 column order on mobile layout?

... You cannot change the order of columns in smaller screens but you can do that in large screens. So change the order of your columns. <!--Main Content--> <div class="col-lg-9 col-lg-push-3"> </div> <!--Sidebar--> <div ...
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What's the $unwind operator in MongoDB?

...g and obtaining the data from your storage locations. That being said, in order to understand the concept behind the $unwind parameter, you first must understand what the use case that you are trying to quote is saying. The example document from mongodb.org is as follows: { title : "this is my ti...
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rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)

...same error in my development environment. In the end all I needed to do in order to fix it was to add: config.assets.manifest = Rails.root.join("public/assets") to my config/environments/development.rb file and it fixed it. My final config in development related to assets looks like: config.asse...
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Is async HttpClient from .Net 4.5 a bad choice for intensive load applications?

...ient, by default it will copy the network stream into a memory stream. In order to use HttpClient in the same way that you are currently using HttpWebRquest you would need to do var requestMessage = new HttpRequestMessage() {RequestUri = URL}; Task<HttpResponseMessage> getTask = httpClient.S...
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java.util.regex - importance of Pattern.compile()?

...d reset a Matcher object that is only ever used by one thread at a time in order to reduce allocations. – AndrewF Jul 3 '19 at 20:40  |  show ...
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What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]

...same query. If we do mix them, we need to be aware of a difference in the order of precedence. excerpt from MySQL Reference Manual https://dev.mysql.com/doc/refman/5.6/en/join.html INNER JOIN and , (comma) are semantically equivalent in the absence of a join condition: both produce a Cartesian pro...
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In which order should floats be added to get the most precise result?

... Your instinct is basically right, sorting in ascending order (of magnitude) usually improves things somewhat. Consider the case where we're adding single-precision (32 bit) floats, and there are 1 billion values equal to 1 / (1 billion), and one value equal to 1. If the 1 comes f...
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When to use Preorder, Postorder, and Inorder Binary Search Tree Traversal strategies

...BST's plenty in my life, I've never even contemplated using anything but Inorder traversal (while I am aware of and know how easy it is to adapt a program to use pre/post-order traversal). ...
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Pass an array of integers to ASP.NET Web API?

...ther parameters, after. When feeding in the parameters in the request, the order is unimportant. – Sparked Apr 23 '16 at 13:47  |  show 3 more...