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What is the purpose of the '@' symbol in CSS?
I just stumbled across this question and I noticed the user is using some notation I've never seen before:
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What does GitHub for Windows' “sync” do?
With GitHub for Windows, you can "publish" a branch, and then "sync" that branch to GitHub.
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CSRF protection with CORS Origin header vs. CSRF token
This question is about protecting against Cross Site Request Forgery attacks only.
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Regex for numbers only
I haven't used regular expressions at all, so I'm having difficulty troubleshooting. I want the regex to match only when the contained string is all numbers; but with the two examples below it is matching a string that contains all numbers plus an equals sign like "1234=4321". I'm sure there's a way...
Where in an Eclipse workspace is the list of projects stored?
I use Eclipse with "external" projects - i.e. projects created from existing source.
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How do I create a SHA1 hash in ruby?
SHA Hash functions
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How can I check if a key is pressed during the click event with jQuery?
I would like to catch a click event with jQuery and be able to tell if a key was pressed at the same time so I can fork within the callback function based on the keypress event.
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What is PAGEIOLATCH_SH wait type in SQL Server?
I have a query that is taking a long time in the middle of a transaction. When I get the wait_type of the process it is PAGEIOLATCH_SH .
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Failure [INSTALL_FAILED_ALREADY_EXISTS] when I tried to update my application
when I tried to update my applcation with new version that has same signature as previous one, shows above error.
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Rails “validates_uniqueness_of” Case Sensitivity
Here is the model (I am using SQLLite3):
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