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MongoDB - Update objects in a document's array (nested updating)
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Iterate through pairs of items in a Python list [duplicate]
...ls import tee
def pairwise(iterable):
"s -> (s0,s1), (s1,s2), (s2, s3), ..."
a, b = tee(iterable)
next(b, None)
return zip(a, b)
for v, w in pairwise(a):
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What is C# analog of C++ std::pair?
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330
Tuples are available since .NET4.0 and support generics:
Tuple<string, int> t = new Tup...
How to cherry pick from 1 branch to another
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edited Dec 13 '19 at 16:38
Paolo
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a...
What is purpose of the property “private” in package.json?
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answered Sep 6 '11 at 4:31
aceace
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LINQ: “contains” and a Lambda query
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328
Use Any() instead of Contains():
buildingStatus.Any(item => item.GetCharValue() == v.Statu...
How to compare times in Python?
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132
You can't compare a specific point in time (such as "right now") against an unfixed, recurring ...
Update a column value, replacing part of a string
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answered Apr 16 '12 at 15:39
Dmytro ShevchenkoDmytro Shevchenko
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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
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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...