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Is there a way to check which CSS styles are being used or not used on a web page?
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Install the CSS Usage add-on for Firebug and run it on that page. It will tell you which styles are being used and not used by that page.
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Is there a good reason to use upper case for SQL keywords? [closed]
The default seems to be upper case, but is there really any reason to use upper case for keywords? I started using upper case because I was just trying to match what SQL Server gives me whenever I tried to create something, like a new stored procedure. But then, I felt terrible for my baby (5th) fin...
Remove tracking branches no longer on remote
Is there a simple way to delete all tracking branches whose remote equivalent no longer exists?
34 Answers
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use localStorage across subdomains
...sidered a subdomain (a stupid decision if you ask me). If a user was originally on site.com and decides to type in www . site.com on her next visit, all her personal data will be inaccessible. How do I get all my "subdomains" to share the same localStorage as the main domain?
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What exactly does big Ө notation represent?
I'm really confused about the differences between big O, big Omega, and big Theta notation.
6 Answers
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MySQL - why not index every field?
...y I've learned the wonder of indexes, and performance has improved dramatically. However, with all I've learned, I can't seem to find the answer to this question.
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
...me (assuming the longest key is the longest english word) it can be essentially O(1) (in relation to the upper bound). Maybe the longest english word is 50 characters?
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Favicon: .ico or .png / correct tags? [duplicate]
...icon format do you recommend and why? I want it to be supported by IE7 and all the modern browsers.
3 Answers
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How does the Windows Command Interpreter (CMD.EXE) parse scripts?
...s are on either side of a pipe
Phase 5.5) Execute Redirection:
Phase 6) CALL processing/Caret doubling: Only if the command token is CALL
Phase 7) Execute: The command is executed
Here are details for each phase:
Note that the phases described below are only a model of how the batch parser w...
Enum “Inheritance”
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This is not possible. Enums cannot inherit from other enums. In fact all enums must actually inherit from System.Enum. C# allows syntax to change the underlying representation of the enum values which looks like inheritance, but in actuality they still inherit from System.enum.
See section 8...