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How do you create a toggle button?

...no good ways do to it. You have to add extra span, extra div, and, for a really nice look, add some javascript. So the best solution is to use a small jQuery function and two background images for styling the two different statuses of the button. Example with an up/down effect given by borders: ...
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How do I find if a string starts with another string in Ruby?

...egex is far superior for case insensitive searches, even if you calculated all the permutations of cases for the test string ahead of time. – Peter P. Apr 2 '15 at 23:03 3 ...
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How to retrieve a single file from a specific revision in Git?

... out of the output and used as an argument to git-cat-file, which should really be called git-cat-object, and simply dumps that object to stdout. Note: since Git 2.11 (Q4 2016), you can apply a content filter to the git cat-file output. See commit 3214594, commit 7bcf341 (09 Sep 2016), commit 7bcf3...
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How do I convert from stringstream to string in C++?

...g string object. 1) Returns a copy of the underlying string as if by calling rdbuf()->str(). 2) Replaces the contents of the underlying string as if by calling rdbuf()->str(new_str)... Notes The copy of the underlying string returned by str is a temporary object that will b...
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How can I change a secret Gist to public?

... @VonC my bad, I wanted to write "(only Secret -> Public)". So basically you can only make public a gist that was previously private. When it is public it will stay public. – GiDo Jul 7 '16 at 16:28 ...
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How to count occurrences of a column value efficiently in SQL?

... If you're using Oracle, then a feature called analytics will do the trick. It looks like this: select id, age, count(*) over (partition by age) from students; If you aren't using Oracle, then you'll need to join back to the counts: select a.id, a.age, b.age_co...
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Cross-browser multi-line text overflow with ellipsis appended within a fixed width and height

...cess remains invisible and even with JS turned off the result remains 'visually correct' (without the "..." of course). If you combine this with a sensible truncation on the server-side (that leaves only a small overhead) then it will run quicker :). Again, this is not a complete solution, just an...
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ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'

I installed LAMP on Ubuntu 12.04 LTS (Precise Pangolin) and then set root password on phpMyAdmin . I forgot the password and now I am unable to login. When I try to change password through terminal I get: ...
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Finding which process was killed by Linux OOM killer

... without knowing what the score means, and that's not documented anywhere. All you might see is the score increase, then the process being killed, so maybe it was the oom killer, or maybe it was something else, there's no way to be sure. – laurent Feb 24 at 12:...
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NSLog with CGPoint data

I have a CGPoint called point that is being assigned a touch: 6 Answers 6 ...