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How can I split a JavaScript string by white space or comma?
...on:
input.split(/[ ,]+/);
This particular regex splits on a sequence of one or more commas or spaces, so that e.g. multiple consecutive spaces or a comma+space sequence do not produce empty elements in the results.
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Create numpy matrix filled with NaNs
...tion in-place, so numpy.empty((3,3,)).fill(numpy.nan) will instead return None.
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What is the difference between a strongly typed language and a statically typed language?
Also, does one imply the other?
8 Answers
8
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Moving average or running mean
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For a short, fast solution that does the whole thing in one loop, without dependencies, the code below works great.
mylist = [1, 2, 3, 4, 5, 6, 7]
N = 3
cumsum, moving_aves = [0], []
for i, x in enumerate(mylist, 1):
cumsum.append(cumsum[i-1] + x)
if i>=N:
mov...
Python: One Try Multiple Except
In Python, is it possible to have multiple except statements for one try statement? Such as :
1 Answer
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Copy constructor versus Clone()
...t is the preferred way to add (deep) copy functionality to a class? Should one implement the copy constructor, or rather derive from ICloneable and implement the Clone() method?
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What's the difference between the data structure Tree and Graph?
... a DAG).
So Trees are DAGs with the restriction that a child can only have one parent.
One thing that is important to point out, Trees aren't a recursive data structure.
They can not be implemented as a recursive data structure because of the above restrictions. But any DAG implementation, which a...
Why should a function have only one exit-point? [closed]
...ent schools of thought, and it largely comes down to personal preference.
One is that it is less confusing if there is only a single exit point - you have a single path through the method and you know where to look for the exit. On the minus side if you use indentation to represent nesting, your co...
Why does a base64 encoded string have an = sign at the end
...a base64 encoded string doesn't always end with a =, it will only end with one or two = if they are required to pad the string out to the proper length.
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get dictionary key by value
...something like this:
var myKey = types.FirstOrDefault(x => x.Value == "one").Key;
If values are unique and are inserted less frequently than read, then create an inverse dictionary where values are keys and keys are values.
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