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How to check file MIME type with javascript before upload?
...ve read this and this questions which seems to suggest that the file MIME type could be checked using javascript on client side. Now, I understand that the real validation still has to be done on server side. I want to perform a client side checking to avoid unnecessary wastage of server resourc...
Locking pattern for proper use of .NET MemoryCache
I assume this code has concurrency issues:
9 Answers
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How to overlay one div over another div
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I would suggest learning about position: relative and child elements with position: absolute.
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What is the purpose of AsQueryable()?
Is the purpose of AsQueryable() just so you can pass around an IEnumerable to methods that might expect IQueryable , or is there a useful reason to represent IEnumerable as IQueryable ? For example, is it supposed to be for cases like this:
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Resizing an image in an HTML5 canvas
...eate a thumbnail image on the client side using javascript and a canvas element, but when I shrink the image down, it looks terrible. It looks as if it was downsized in photoshop with the resampling set to 'Nearest Neighbor' instead of Bicubic. I know its possible to get this to look right, becaus...
how to ignore namespaces with XPath
...y goal is to extract certain nodes from multiple xml files with multiple namespaces using XPath. Everything works fine as long as i know the namespace URIs. The namespace name itself remains constant, but the Schemas (XSD) are sometimes client-generated i.e. unknown to me. Then i am left with basica...
Why JSF saves the state of UI components on server?
...ssary to save state while using JSF. A high performance Stateless JSF implementation is available for use. See this blog & this question for relevant details & discussion. Also, there is an open issue to include in JSF specs, an option to provide stateless mode for JSF.
(P.S. Consider voting f...
In C#, can a class inherit from another class and an interface?
...the common things (like connecting, disconnecting, getting firmware) the same for all of our applications.
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What are the differences between poll and select?
...c difference is that select()'s fd_set is a bit mask and
therefore has some fixed size. It would be possible for the kernel to
not limit this size when the kernel is compiled, allowing the
application to define FD_SETSIZE to whatever it wants (as the comments
in the system header imply toda...
Does MySQL ignore null values on unique constraints?
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excellent comment about how it's true in mysql, but not necessarily in general.
– user2910265
Sep 13 '14 at 1:52
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