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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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mysql query order by multiple items

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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. ...
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MySql - Way to update portion of a string?

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Understanding NSRunLoop

...t need to access the run loop directly, though there are some (networking) components that may allow you to specify which run loop they will use for I/O processing. A run loop for a given thread will wait until one or more of its input sources has some data or event, then fire the appropriate input...