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What is the most efficient way to concatenate N arrays?
...oncat() is the way to go for convenience and likely performance.
var a = [1, 2], b = ["x", "y"], c = [true, false];
var d = a.concat(b, c);
console.log(d); // [1, 2, "x", "y", true, false];
For concatenating just two arrays, the fact that push accepts multiple arguments consisting of elements to ...
Replace values in list using Python [duplicate]
...list in-place if you want, but it doesn't actually save time:
items = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
for index, item in enumerate(items):
if not (item % 2):
items[index] = None
Here are (Python 3.6.3) timings demonstrating the non-timesave:
In [1]: %%timeit
...: items = [0, 1,...
What .NET collection provides the fastest search
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143
In the most general case, consider System.Collections.Generic.HashSet as your default "Contain...
How to merge lists into a list of tuples?
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In Python 2:
>>> list_a = [1, 2, 3, 4]
>>> list_b = [5, 6, 7, 8]
>>> zip(list_a, list_b)
[(1, 5), (2, 6), (3, 7), (4, 8)]
In Python 3:
>>> list_a = [1, 2, 3, 4]
>>> list_b = [5, 6, 7, 8]
>>> list(zip(list...
Java: method to get position of a match in a String?
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14 Answers
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Drop columns whose name contains a specific string from pandas DataFrame
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10 Answers
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How to find list of possible words from a letter matrix [Boggle Solver]
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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
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163
This is a recurring subject in Stackoverflow and since I was unable to find a relevant impleme...
Passing a std::array of unknown size to a function
In C++11, how would I go about writing a function (or method) that takes a std::array of known type but unknown size?
6 Ans...