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Seeing escape characters when pressing the arrow keys in python shell
...o move around in the current line or get previous commands (with arrow-up) etc.
23 Answers
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How to calculate moving average using NumPy?
...nce of np.ones of a length equal to the sliding window length we want.
In order to do so we could define the following function:
def moving_average(x, w):
return np.convolve(x, np.ones(w), 'valid') / w
This function will be taking the convolution of the sequence x and a sequence of ones of l...
Is “else if” faster than “switch() case”? [duplicate]
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True, but with an if-else-if chain you can order the conditions based on how likely they are to be true.
– Dave Van den Eynde
Apr 20 '09 at 11:24
76...
Conversion failed when converting date and/or time from character string while inserting datetime
...une or 30th of February...
One more reason for strange conversion errors: Order of execution!
SQL-Server is well know to do things in an order of execution one might not have expected. Your written statement looks like the conversion is done before some type related action takes place, but the engi...
Is it possible to create a multi-line string variable in a Makefile
...KAGE_NAME) has been released.
It can be downloaded from $(DOWNLOAD_URL).
etc, etc.
endef
The tricky part is getting your multi-line variable back out of the makefile. If you just do the obvious thing of using "echo $(ANNOUNCE_BODY)", you'll see the result that others have posted here -- the she...
mongodb/mongoose findMany - find all documents with IDs listed in array
... Kind of late to this discussion, but how would you ensure the order of the items returned matches the order of the array of items you provide in the array? Documents are not guaranteed to come out in any order unless you specify a sort. What if you want them sorted in the same order you...
What is the yield keyword used for in C#?
...ithout creating temp collections.
It helps to do stateful iteration.
In order to explain above two points more demonstratively, I have created a simple video you can watch it here
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How to print a string in fixed width?
...lt;5}'.format('ss', 'sss') 'Second sss and first ss ' so you can reorder or even output the same variable many times in a single output string.
– mightypile
Dec 23 '13 at 17:59
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How to iterate over the keys and values with ng-repeat in AngularJS?
...that it will be alphabetized by the keys so the naming matters if the item order is relevant to the display.
– display name
Mar 11 '14 at 18:49
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How to count occurrences of a column value efficiently in SQL?
...Microsoft SQL (i.e 2000)
SELECT age, count(*)
FROM Students
GROUP by age
ORDER BY age
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