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Is there a math nCr function in python? [duplicate]
...nt manner (compared to calculating factorials etc.)
import operator as op
from functools import reduce
def ncr(n, r):
r = min(r, n-r)
numer = reduce(op.mul, range(n, n-r, -1), 1)
denom = reduce(op.mul, range(1, r+1), 1)
return numer // denom # or / in Python 2
As of Python 3.8...
Remove duplicate entries using a Bash script [duplicate]
I want to remove duplicate entries from a text file, e.g:
4 Answers
4
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See what's in a stash without applying it [duplicate]
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From the man git-stash page:
The modifications stashed away by this command can be listed with git stash list,
inspected with git stash show
show [<stash>]
Show the changes recorded in the stash a...
jQuery - replace all instances of a character in a string [duplicate]
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You would create a RegExp object from a string: str = str.replace(new RegExp('"_0x69b9[' + i + ']"', 'g'), _array[i]);. However, consider if you instead can use (\d+) in the pattern to match any number and catch it for lookup in a replacement function, that...
How can I put the current running linux process in background? [closed]
I have a command that uploads files using git to a remote server from the Linux shell and it will take many hours to finish.
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Loop through an array in JavaScript
...(item))
Keep in mind if you are iterating an array to build another array from it, you should use map, I've seen this anti-pattern so many times.
Anti-pattern:
const numbers = [1,2,3,4,5], doubled = [];
numbers.forEach((n, i) => { doubled[i] = n * 2 });
Proper use case of map:
const number...
What is __declspec and when do I need to use it?
...t), which instruct the linker to import and export (respectively) a symbol from or to a DLL.
// header
__declspec(dllimport) void foo();
// code - this calls foo() somewhere in a DLL
foo();
(__declspec(..) just wraps up Microsoft's specific stuff - to achieve compatibility, one would usually wr...
Xml serialization - Hide null values
...due to an error when reflecting the type) until I removed the XmlAttribute from the nullable int-property.
– Matze
May 3 '13 at 11:52
2
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Check if a key exists inside a json object
...ws the error error Do not access Object.prototype method 'hasOwnProperty' from target object when using this method. Thoughts?
– hamncheez
Feb 21 '19 at 20:01
2
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How to add a “open git-bash here…” context menu to the windows explorer?
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The easiest way is to install the latest Git from here. And while installing, make sure you are enabling the option Windows Explorer Integration.
Once you are done, you will get those options in whenever you right click on any folder.
Hope it helps.
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