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Is String.Format as efficient as StringBuilder
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NOTE: This answer was written when .NET 2.0 was the current version. This may no longer apply to later versions.
String.Format uses a StringBuilder internally:
public static string Format(IFormatProvider provider, string format, params object[] args)
{
if...
List of Big-O for PHP functions
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Checking for empty arrays: count vs empty
... for arrays. empty is more general and can be applied to other types.
php.net gives the following warning for count though :
count() may return 0 for a variable that isn't set, but it may also return 0 for a variable that has been initialized with an empty array. Use isset() to test if a variab...
Case-INsensitive Dictionary with string key-type in C#
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How to delete duplicate lines in a file without sorting it in Unix?
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From http://sed.sourceforge.net/sed1line.txt:
(Please don't ask me how this works ;-) )
# delete duplicate, consecutive lines from a file (emulates "uniq").
# First line in a set of duplicate lines is kept, rest are deleted.
sed '$!N; /^\(.*\)\n\1$/...
Update parent scope variable in AngularJS
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surface plots in matplotlib
...o get 2d x,y mesh out of 1d x and y values.
http://matplotlib.sourceforge.net/mpl_examples/mplot3d/surface3d_demo.py
here's pythonic way to convert your 3-tuples to 3 1d arrays.
data = [(1,2,3), (10,20,30), (11, 22, 33), (110, 220, 330)]
X,Y,Z = zip(*data)
In [7]: X
Out[7]: (1, 10, 11, 110)
In [8...
Returning 'IList' vs 'ICollection' vs 'Collection'
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All collections in .Net are ordered, because IEnumerable<T> is ordered. What distinguishes IList<T> from ICollection<T> is that it offers members to work with indexes. For example list[5] works, but collection[5] won't compile....
Android: HTTP communication should use “Accept-Encoding: gzip”
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How can I access the MySQL command line with XAMPP for Windows?
...l.exe (yes, I had done the cd command already).
– dotNET
Nov 29 '19 at 18:46
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