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Generate list of all possible permutations of a string
How would I go about generating a list of all possible permutations of a string between x and y characters in length, containing a variable list of characters.
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how to get request path with express req object
..., and req.path could be missing mounting points depending upon where it's called. expressjs.com/en/api.html#req.originalUrl
– Christian Davis
Jul 21 '17 at 19:06
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JavaScript is in array
...ent.keyCode)). Tested on Chrome 37.0.2062.122.
– François
Sep 24 '14 at 16:58
2
fwiw I always us...
What is the difference between Strategy design pattern and State design pattern?
...ce to the context object that contains them. Strategies do not.
States are allowed to replace themselves (IE: to change the state of the context object to something else), while Strategies are not.
Strategies are passed to the context object as parameters, while States are created by the context obj...
Find intersection of two nested lists?
... 3 filter returns an iterable instead of list, so you need to wrap filter calls with list():
c3 = [list(filter(lambda x: x in c1, sublist)) for sublist in c2]
Explanation:
The filter part takes each sublist's item and checks to see if it is in the source list c1.
The list comprehension is exec...
UILabel Align Text to center
... Apr 30 '18 at 11:58
Linus Unnebäck
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answered Jul 12 '12 at 8:20
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How to export table as CSV with headings on Postgresql?
...ROM mytable) TO STDOUT" > mytable.csv
– Juha Palomäki
Jun 6 '19 at 16:00
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vertical align middle in
... want to keep the height of #abc div at 50px and text to align vertically in the middle of the div .
10 Answers
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Android: Go back to previous activity
...m another activity with startActivityForResult. In that case you can just call the finishActivity() function from your code and it'll take you back to the previous activity.
Keep track of the activity stack. Whenever you start a new activity with an intent you can specify an intent flag like FLAG_AC...
How to check if a float value is a whole number
... @PeterM: The method indeed only returns True if there are no decimals at all. There may be a misunderstanding on the part of the OP about floating point arithmetic and precision, of course.
– Martijn Pieters♦
Feb 5 '14 at 17:17
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