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Declaration suffix for decimal type
...re m stands for money). Is this appropriate for any decimals or is there a more general assignment (d stands for double, that is for sure not the right thing although a direct conversion is supported).
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How to check if a line is blank using regex
...e end of string anchor.
\s is the whitespace character class.
* is zero-or-more repetition of.
In multiline mode, ^ and $ also match the beginning and end of the line.
References:
regular-expressions.info/Anchors, Character Classes, and Repetition.
A non-regex alternative:
You can also che...
Is there a “null coalescing” operator in JavaScript?
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Return None if Dictionary key is not available
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Difference between SelectedItem, SelectedValue and SelectedValuePath
... Glad you're enjoying the book :). Since you've got the book, you'll find more information on this topic on pages 69-70, and page 204.
– Chris Anderson
Feb 4 '11 at 20:59
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How to determine if a list of polygon points are in clockwise order?
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Difference between single and double square brackets in Bash
... expands to [ a b = 'a b' ]
x='*'; [ $x = 'a b' ]: syntax error if there's more than one file in the current directory.
x='a b'; [ "$x" = 'a b' ]: POSIX equivalent
=
[[ ab = a? ]]: true, because it does pattern matching (* ? [ are magic). Does not glob expand to files in current directory.
[ ab =...
Numpy array assignment with copy
... to work. B[:] = A[:] does the same thing (but B = A[:] would do something more like 1).
numpy.copy(B, A)
This is not legal syntax. You probably meant B = numpy.copy(A). This is almost the same as 2, but it creates a new array, rather than reusing the B array. If there were no other references to t...