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How to tell if node.js is installed or not
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Open a terminal window.
Type:
node -v
This will display your nodejs version.
Navigate to w...
How to style dt and dd so they are on the same line?
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Ariel
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answered Nov 11 '09 at 4:44
eozzyeozzy
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Incrementing a date in JavaScript
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825
Three options for you:
1. Using just JavaScript's Date object (no libraries):
My previous ans...
How to sort mongodb with pymongo
...d", 1)
For multiple fields:
.sort([("field1", pymongo.ASCENDING), ("field2", pymongo.DESCENDING)])
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Can Json.NET serialize / deserialize to / from a stream?
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edited May 23 '17 at 12:34
Community♦
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answered Nov 16 '11 at 20:29
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ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al
...in boolean context (by
calling __bool__ in Python3 or __nonzero__ in Python2).
Your original code
mask = ((r["dt"] >= startdate) & (r["dt"] <= enddate))
selected = r[mask]
looks correct. However, if you do want and, then instead of a and b use (a-b).any() or (a-b).all().
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Is there a method to generate a UUID with go language
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Operator overloading : member function vs. non-member function?
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2 Answers
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Do we still need end slashes in HTML5?
... tag would be invalid.
– Ry-♦
Apr 24 '14 at 18:24
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While the question is about end slashes (e...