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Why is a round-trip conversion via a string not safe for a double?
...ber(value, 17, &number);
DoubleToNumber is pretty simple -- it just calls _ecvt, which is in the C runtime:
void DoubleToNumber(double value, int precision, NUMBER* number)
{
WRAPPER_CONTRACT
_ASSERTE(number != NULL);
number->precision = precision;
if (((FPDOUBLE*)&val...
Swift - Convert to absolute value
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answered Jun 11 '14 at 9:48
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Using Git, how could I search for a string across all branches?
Using Git, how could I search within all files in all local branches for a given string?
5 Answers
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Remove duplicate elements from array in Ruby
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array = array.uniq
uniq removes all duplicate elements and retains all unique elements in the array.
This is one of many beauties of the Ruby language.
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Does Python SciPy need BLAS?
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The SciPy webpage used to provide build and installation instructions, but the instructions there now rely on OS binary distributions. To build SciPy (and NumPy) on operating systems without precompiled packages of the required libraries, you must build and then statically...
How can I reset a react component including all transitively reachable state?
I occasionally have react components that are conceptually stateful which I want to reset. The ideal behavior would be equivalent to removing the old component and readding a new, pristine component.
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How to remove a field from params[:something]
... = params.except[the one I wish to remove]
This is a safer way to 'grab' all the params you need into a copy WITHOUT destroying the original passed in params (which is NOT a good thing to do as it will make debugging and maintenance of your code very hard over time).
Or you could just pass direc...
Favicons - Best practices
I'm trying to get my head around all these different sizes and formats that are needed for Favicons, Touch icons and now Tile icons too.
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If string is empty then return some default value
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ActiveSupport adds a presence method to all objects that returns its receiver if present? (the opposite of blank?), and nil otherwise.
Example:
host = config[:host].presence || 'localhost'
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How to go back in Eclipse?
Is there a way to go back in Eclipse? Basically, when I'm jumping around a big project following the execution flow (ctrl + click and etc.), is there a way to retrace a step? If my code calls a method and I go to the method definition, is there a key combination that will take me back to the calling...