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When should I use a struct rather than a class in C#?

When should you use struct and not class in C#? My conceptual model is that structs are used in times when the item is merely a collection of value types . A way to logically hold them all together into a cohesive whole. ...
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What's the difference between using “let” and “var”?

...let keyword was introduced to the language was function scope is confusing and was one of the main sources of bugs in JavaScript. Take a look at this example from another stackoverflow question: var funcs = []; // let's create 3 functions for (var i = 0; i < 3; i++) { // and store them in fun...
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java.net.SocketException: Connection reset

...ying to read from a socket. I'm doing a readInt() on that InputStream , and I am getting this error. Perusing the documentation this suggests that the client part of the connection closed the connection. In this scenario, I am the server. ...
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What is the purpose of the implicit grant authorization type in OAuth 2?

...kind of blind spot or what, but I've read the OAuth 2 spec many times over and perused the mailing list archives, and I have yet to find a good explanation of why the Implicit Grant flow for obtaining access tokens has been developed. Compared to the Authorization Code Grant, it seems to just give u...
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javac is not recognized as an internal or external command, operable program or batch file [closed]

...emove old Java paths. Add the new Java path to PATH. Edit JAVA_HOME. Close and re-open console/IDE. Welcome! You have encountered one of the most notorious technical issues facing Java beginners: the 'xyz' is not recognized as an internal or external command... error message. In a nutshell, yo...
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Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]

I'm looking for a stand-alone full-text search server with the following properties: 5 Answers ...
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Are PHP short tags acceptable to use?

...A if you ever have to move your code to a server where it's not supported (and you can't enable it). As you say, lots of shared hosts do support shorttags but "lots" isn't all of them. If you want to share your scripts, it's best to use the full syntax. I agree that <? and <?= are easier on p...
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F# development and unit testing?

... first functional language. I have been working quasi-exclusively with C#, and enjoy a lot how F# leads me to re-think how I write code. One aspect I find a bit disorienting is the change in the process of writing code. I have been using TDD for years in C# now, and really appreciate to have unit te...
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Why remove unused using directives in C#?

...me. Static analysis is slower. Code compilation is slower. On the other hand, there aren't many reasons to leave them in. I suppose you save yourself the effort of having to delete them. But if you're that lazy, you've got bigger problems! ...
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Automatic Retina images for web sites

With the new Apple MacBook Pro with retina display, if you provide a "standard" image on your website, it'll be a little fuzzy. So you have to provide a retina image. ...