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If you're a programmer then you know that you frequently get things wrong. Sometimes you find those bugs before your application gets to production ... and sometimes you don't. Bad news: Nothing is going to help and it's not going to get any better.
12/17/2018
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By default, tests in the new .NET Core testing framework (xUnit) are isolated. This is a good thing ... except when you need to create a single test environment that is used by multiple tests. Here's all the ways you can provide a single environment for a set of tests in xUnit.
12/13/2018
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There's a new testing framework in town. Here's how to use it.
12/11/2018
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Here's a tool to help you integrate Blazor and JavaScript by passing HTML elements defined in Blazor to JavaScript functions.
12/06/2018
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Sometimes the easiest solution isn't the best one. Here's an architectural approach to building Blazor pages that also makes it easy to combine the worlds of JavaScript and Blazor.
12/04/2018
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Eric Vogel provides many code samples to show how to use Entity Framework Core for an ASP.NET Core MVC application.
11/29/2018
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If you want to know what your next call to SaveChanges is going to do to your database then you want to use Entity Framework's ChangeTracker.
11/27/2018
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There's a new kid in the Visual Studio testing environment, though it's only for your .NET Core projects. You don't have to use it, but here are some reasons you'll want to.
11/26/2018
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If you're testing for exceptions using ExpectedException, you have a better alternative.
11/16/2018
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Custom sentiment analysis is hard, but neural network libraries like Keras with built-in LSTM (long, short term memory) functionality have made it feasible. Step into the Data Science Lab with Dr. McCaffrey to find out how, with full code examples.
11/15/2018
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Odds are that, when you stop on some breakpoint, you want to check the value in some variables. Here's how to get Visual Studio to display those values for you.
11/13/2018
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Here's how to add headers or modify the content of requests and responses in the ASP.NET pipeline's modules and handlers.
11/05/2018
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Not only can you integrate JavaScript with Blazor, that integration provides a strategy for moving your existing pages to Blazor without having to rewrite your existing JavaScript code.
11/02/2018
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If someone tells you that LINQ doesn't support subqueries ... well, they're not wrong. But they're also not entirely correct, either. With LINQ you can meet many of the goals of SQL subqueries including the ability to build complex queries out of simpler ones.
11/01/2018
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By Chris Sainty
Blazor expert Chris Sainty provides hands-on code samples to explain how to handle DOM and user-defined events in Microsoft's experimental project for writing browser-based apps with C# instead of JavaScript.
10/31/2018
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ASP.NET Web API and ASP.NET MVC have similar (but not identical) mechanisms that allow you to customize how your requests and responses are processed. Not surprisingly, ASP.NET Web API's implementation is both easier and more flexible than ASP.NET MVC.
10/30/2018
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Sure, F12 will take you to the definition of whatever your cursor is sitting on. But that's just the start.
10/29/2018
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It's a lot easier in ASP.NET Core to let the client know that everything went right (or wrong).
10/26/2018
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You can mix script files from CDNs with your own local files, but it can be difficult to test the result to see if your code works. Here's how to both bundle JavaScript from a CDN and check to see if it's being done right.
10/25/2018
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You have at least two options for adding processing to multiple controllers without duplicating code in each of the Controllers.
10/23/2018
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The Data Science Doctor explains how to use the reinforcement learning branch of machine learning with the Q-learning approach, providing code on how to solve a maze problem for an easy-to-understand example.
10/19/2018
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Eric Vogel shows how to create a new ASP.NET Core Web application using Visual Studio 2017.
10/18/2018
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Peter doesn’t see why the next UI you create (for the Web or for the desktop or for your mobile device) won’t be created in Xamarin.Forms. Or why that wouldn’t be your next career move.
10/17/2018
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If you’re going to write comments then you might as well avoid embarrassing yourself.
10/16/2018
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Peter shares a great tool that not only makes your application run faster but gives you insight into other potential problems.
10/15/2018