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Convert RGB to RGBA over white

... rgba(0, 62, 123, .404). I have verified in Photoshop that the colors actually match perfectly. share | improve this answer | follow | ...
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Groovy Shell warning “Could not open/create prefs root node …”

... Is it possible to do this progmatically? – facetoe Oct 15 '13 at 6:20 13 ...
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What's the key difference between HTML 4 and HTML 5?

...ket, they just have to test malformed documents in various browsers (especially IE) and reverse-engineer their error handling. If they don't, then many pages won't display correctly (estimates place roughly 90% of pages on the net as being at least somewhat malformed). So, HTML5 is attempting to d...
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What is the difference between an abstract function and a virtual function?

... An abstract function cannot have functionality. You're basically saying, any child class MUST give their own version of this method, however it's too general to even try to implement in the parent class. A virtual function, is basically saying look, here's the functionality that may...
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applicationWillEnterForeground vs. applicationDidBecomeActive, applicationWillResignActive vs. appli

...ugh springboard, app switching or URL) applicationWillEnterForeground: is called. It is only executed once when the app becomes ready for use, after being put into the background, while applicationDidBecomeActive: may be called multiple times after launch. This makes applicationWillEnterForeground: ...
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How do I restore a dump file from mysqldump?

... is (you may have to look around a bit for it, it'll depend on how you installed mysql, i.e. standalone or as part of a package like WAMP). Once you're in that directory, you should be able to just type the command as I have it above. ...
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Why does instanceof return false for some literals?

...) {}); // function As you can see objects, arrays and the value null are all considered objects (null is a reference to an object which doesn't exist). Functions are distinguished because they are a special type of callable objects. However they are still objects. On the other hand the literals t...
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Is there a Python function to determine which quarter of the year a date is in?

...ond quarter, etc -- add 1 if you need to count from 1 instead;-). Originally two answers, multiply upvoted and even originally accepted (both currently deleted), were buggy -- not doing the -1 before the division, and dividing by 4 instead of 3. Since .month goes 1 to 12, it's easy to check for ...
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Why doesn't a python dict.update() return the object?

... Python's mostly implementing a pragmatically tinged flavor of command-query separation: mutators return None (with pragmatically induced exceptions such as pop;-) so they can't possibly be confused with accessors (and in the same vein, assignment is not an expressi...
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Parsing a comma-delimited std::string [duplicate]

... : if (ss.peek() == ',' || ss.peek() == ' ') – safe_malloc Oct 31 '14 at 9:27 ...