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Deleting Files using Git/GitHub
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answered Feb 20 '10 at 0:43
Samuel Mikel BowlesSamuel Mikel Bowles
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How to customize a requirements.txt for multiple environments?
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3 Answers
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Rails migrations: Undo default setting for a column
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387
Rails 5+
def change
change_column_default( :table_name, :column_name, from: nil, to: fals...
Python argparse command line flags without arguments
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edited Oct 24 '19 at 13:12
Jean-François Corbett
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Simple Pivot Table to Count Unique Values
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Insert a 3rd column and in Cell C2 paste this formula
=IF(SUMPRODUCT(($A$2:$A2=A2)*($B$2:$B2=B2))>1,0,1)
and copy it down. Now create your pivot based on 1st and 3rd column. See snapshot
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How to convert An NSInteger to an int?
...eger = 42;
int myInt = (int) myInteger;
NSInteger is nothing more than a 32/64 bit int. (it will use the appropriate size based on what OS/platform you're running)
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Running python script inside ipython
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132
from within the directory of "my_script.py" you can simply do:
%run ./my_script.py
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Reset the database (purge all), then seed a database
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answered Oct 23 '10 at 13:45
JackCAJackCA
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_=> what does this underscore mean in Lambda expressions?
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3
It's more common in Haskell and other functional languages. I think that's where it comes from.
– Gabe Moothart
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Check if a string contains a substring in SQL Server 2005, using a stored procedure
..._Unbeliever
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