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How do I find the time difference between two datetime objects in python?
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388
>>> import datetime
>>> first_time = datetime.datetime.now()
>>> la...
get size of json object
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edited Feb 13 '16 at 21:02
Fergus
2,25722 gold badges2222 silver badges3636 bronze badges
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Is pass-by-value a reasonable default in C++11?
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138
It's a reasonable default if you need to make a copy inside the body. This is what Dave Abraham...
Hidden features of Ruby
...product| product.modulo(factor).zero?}
end
case number
when multiple_of(3)
puts "Multiple of 3"
when multiple_of(7)
puts "Multiple of 7"
end
share
edited Dec 8 '...
How do you delete a column by name in data.table?
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Any of the following will remove column foo from the data.table df3:
# Method 1 (and preferred as it takes 0.00s even on a 20GB data.table)
df3[,foo:=NULL]
df3[, c("foo","bar"):=NULL] # remove two columns
myVar = "foo"
df3[, (myVar):=NULL] # lookup myVar contents
# Method 2a -- A saf...
Adding local .aar files to Gradle build using “flatDirs” is not working
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dmSherazi
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answered Jul 22 '14 at 17:52
Ashton EngbergAs...
Why C# fails to compare two object types with each other but VB doesn't?
... Tarik
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answered Feb 12 '13 at 16:38
Jon SkeetJon Skeet
1211k7727...
How to use 'find' to search for files created on a specific date? [closed]
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328
As pointed out by Max, you can't, but checking files modified or accessed is not all that hard...
Hash Map in Python
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253
Python dictionary is a built-in type that supports key-value pairs.
streetno = {"1": "Sachin Te...
How do I add files and folders into GitHub repos?
...acing a problem with adding files. I have added readme.txt . Also, I have 3 other PHP files and a folder including images.
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