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How to remove a field completely from a MongoDB document?
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14 Answers
14
Active
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Batch file to delete files older than N days
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1085
Enjoy:
forfiles -p "C:\what\ever" -s -m *.* -d <number of days> -c "cmd /c del @path"
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type object 'datetime.datetime' has no attribute 'datetime'
...b/python2.6/lib-dynload/datetime.so'>
>>> datetime.datetime(2001,5,1)
datetime.datetime(2001, 5, 1, 0, 0)
But, if you import datetime.datetime:
>>> from datetime import datetime
>>> datetime
<type 'datetime.datetime'>
>>> datetime.datetime(2001,5,1) # ...
Can I bind an array to an IN() condition?
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21 Answers
21
Active
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Looping through a hash, or using an array in PowerShell
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108
Christian's answer works well and shows how you can loop through each hash table item using th...
Making an array of integers in iOS
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160
You can use a plain old C array:
NSInteger myIntegers[40];
for (NSInteger i = 0; i < 40; ...
How to split data into training/testing sets using sample function
...row(mtcars))
## set the seed to make your partition reproducible
set.seed(123)
train_ind <- sample(seq_len(nrow(mtcars)), size = smp_size)
train <- mtcars[train_ind, ]
test <- mtcars[-train_ind, ]
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npm: disable postinstall script for package
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edited Oct 19 '17 at 15:25
Ronan Quillevere
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Sorting a Python list by two fields
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162
like this:
import operator
list1 = sorted(csv1, key=operator.itemgetter(1, 2))
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