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Using @include vs @extend in Sass?
In Sass, I can't quite discern the difference between using @include with a mixin and using @extend with a placeholder class. Don't they amount to the same thing?
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How to check file MIME type with javascript before upload?
I have 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 res...
SQL - many-to-many table primary key
This question comes up after reading a comment in this question:
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Why does this (null || !TryParse) conditional result in “use of unassigned local variable”?
The following code results in use of unassigned local variable "numberOfGroups" :
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Does the join order matter in SQL?
Disregarding performance, will I get the same result from query A and B below? How about C and D?
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Explaining difference between automaticallyAdjustsScrollViewInsets, extendedLayoutIncludesOpaqueBars
I have been reading a lot about iOS7 UI transition.
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Why is it possible to recover from a StackOverflowError?
I'm surprised at how it is possible to continue execution even after a StackOverflowError has occurred in Java.
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How does Git handle symbolic links?
If I have a file or directory that is a symbolic link and I commit it to a Git repository, what happens to it?
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How to publish a website made by Node.js to Github Pages?
I made a website using Node.js as the server. As I know, the node.js file should start working by typing commands in terminal, so I'm not sure if Github Pages supports node.js-hosting. So what should I do?
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What exactly do “IB” and “UB” mean?
I've seen the terms "IB" and "UB" used several times, particularly in the context of C++. I've tried googling them, but apparently those two-letter combinations see a lot of use. :P
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