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Sourcemaps off by one line in Chrome, with Ruby on Rails, Webpack, and React JS

...n Rails application to generate a concatenated, unminified JavaScript file composed of a couple dozen modules. Most of those modules are ReactJS components, and are parsed by the jsx loader. The output from Webpack is then included in the application.js file along with some other JavaScript li...
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Preview an image before it is uploaded

...nction() { readURL(this); }); <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <form runat="server"> <input type='file' id="imgInp" /> <img id="blah" src="#" alt="your image" /> </form> Also, you can try ...
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C# version of java's synchronized keyword?

...that for field-like events, the locking implementation is dependent on the compiler; in older Microsoft compilers it is a lock(this) / lock(Type) - however, in more recent compilers it uses Interlocked updates - so thread-safe without the nasty parts. This allows more granular usage, and allows use...
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What is scope/named_scope in rails?

... A scope is a subset of a collection. Sounds complicated? It isn't. Imagine this: You have Users. Now, some of those Users are subscribed to your newsletter. You marked those who receive a newsletter by adding a field to the Users Database (user.subscribed_to_newslette...
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Parallel.ForEach vs Task.Run and Task.WhenAll

... In this case, the second method will asynchronously wait for the tasks to complete instead of blocking. However, there is a disadvantage to use Task.Run in a loop- With Parallel.ForEach, there is a Partitioner which gets created to avoid making more tasks than necessary. Task.Run will always mak...
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Comment Inheritance for C# (actually any language)

...erited, it tries to create a description out of the name. FlingThing() becomes "Flings the Thing" share | improve this answer | follow | ...
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mysql query order by multiple items

... add a comment  |  15 ...
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TypeError: Cannot read property 'then' of undefined

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How do streaming resources fit within the RESTful paradigm?

... <title>Some video</title> <stream>rtsp://example.com/media/1.3gp</stream> </media> 2.) Access to the medium/stream itself This is the more problematic bit. You already pointed out one option in your question, and that is to allow access to frames individually ...
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What exactly do the Vagrant commands do?

There is surprisingly no documentation on what the Vagrant commands do, other than references throughout the "getting started" tutorial. ...