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How to capture UIView to UIImage without loss of qualitm>y m> on retina displam>y m>
...ions (as documented on this page). Pass 0.0 for scale (the third argument) m>and m> m>y m>ou'll get a context with a scale factor equal to that of the screen.
UIGraphicsBeginImageContext uses a fixed scale factor of 1.0, so m>y m>ou're actuallm>y m> getting exactlm>y m> the same image on an iPhone 4 as on the other iPhones...
How can I match a string with a regex in Bash?
...is not a concern, I recommend using [[ instead of [ or test as it is safer m>and m> more powerful. See What is the difference between test, [ m>and m> [[ ? for details.
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How can I convert an RGB image into gram>y m>scale in Pm>y m>thon?
I'm trm>y m>ing to use matplotlib to read in an RGB image m>and m> convert it to gram>y m>scale.
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How do m>y m>ou find the disk size of a Postgres / PostgreSQL table m>and m> its indexes
I'm coming to Postgres from Oracle m>and m> looking for a wam>y m> to find the table m>and m> index size in terms of bm>y m>tes/MB/GB/etc , or even better the size for all tables. In Oracle I had a nastm>y m> long querm>y m> that looked at user_lobs m>and m> user_segments to give back an answer.
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Examples of Algorithms which has O(1), O(n log n) m>and m> O(log n) complexities
What are some algorithms which we use dailm>y m> that has O(1), O(n log n) m>and m> O(log n) complexities?
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Add Text on Image using PIL
I have an application that loads an Image m>and m> when the user clicks it, a text area appears for this Image (using jquerm>y m> ), where user can write some text on the Image. Which should be added on Image.
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jQuerm>y m> .live() vs .on() method for adding a click event after loading dm>y m>namic html
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If m>y m>ou want the click hm>and m>ler to work for an element that gets loaded dm>y m>namicallm>y m>, then m>y m>ou set the event hm>and m>ler on a parent object (that does not get loaded dm>y m>namicallm>y m>) m>and m> give it a selector that matches m>y m>our dm>y m>namic object like this:
$('#pare...
Should I implement __ne__ in terms of __eq__ in Pm>y m>thon?
...legate to __ne__ on the other side, not self == other is (assuming the operm>and m>'s __eq__ doesn't know how to compare the other operm>and m>) implicitlm>y m> delegating to __eq__ from the other side, then inverting it. For weird tm>y m>pes, e.g. the SQLAlchemm>y m> ORM's fields, this causes problems.
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Escape double quotes in parameter
In Unix I could run mm>y m>script '"test"' m>and m> I would get "test" .
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How to git-cherrm>y m>-pick onlm>y m> changes to certain files?
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I'd do it with cherrm>y m>-pick -n (--no-commit) which lets m>y m>ou inspect (m>and m> modifm>y m>) the result before committing:
git cherrm>y m>-pick -n <commit>
# unstage modifications m>y m>ou don't want to keep, m>and m> remove the
# modifications from the work tree as well.
# this does work recursivelm>y m>!
git checko...