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What is the purpose of a question mark after a type (for example: int? myVariable)?
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more recent (2015) documentation for nullable type here
– dinosaur
Aug 8 '16 at 21:56
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Creating a dictionary from a csv file?
...ribute 'next'
– Palak
May 28 '19 at 20:36
2
@Palak - it was answered for Python 2.7, try next(dic...
Get the index of the object inside an array, matching a condition
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As of 2016, you're supposed to use Array.findIndex (an ES2015/ES6 standard) for this:
a = [
{prop1:"abc",prop2:"qwe"},
{prop1:"bnmb",prop2:"yutu"},
{prop1:"zxvz",prop2:"qwrq"}];
index = a.findIndex(x => x.pr...
Setting an int to Infinity in C++
... has a boolean variable named "is_infinity".
– user142019
Dec 31 '11 at 21:22
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How to make the 'cut' command treat same sequental delimiters as one?
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Austin Adams
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answered Dec 19 '10 at 16:22
kevkev
129k3...
Do I need to create indexes on foreign keys on Oracle?
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edited Dec 20 '19 at 12:26
gabor
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an...
Accessing last x characters of a string in Bash
...ulldevnull
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2
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Rails: how do I validate that something is a boolean?
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BudgieBudgie
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How to write to an existing excel file without overwriting data (using pandas)?
...ry]
Returns: None
(c) [MaxU](https://stackoverflow.com/users/5741205/maxu?tab=profile)
"""
from openpyxl import load_workbook
# ignore [engine] parameter if it was passed
if 'engine' in to_excel_kwargs:
to_excel_kwargs.pop('engine')
writer = pd.ExcelWriter(fil...
Git rebase fails, 'Your local changes to the following files would be overwritten by merge'. No loca
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edited Feb 8 '12 at 9:20
jhogendorn
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answered...