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Pandas percentage of total with groupby
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14 Answers
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Explain the use of a bit vector for determining if all characters are unique
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12 Answers
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Are tuples more efficient than lists in Python?
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The dis module disassembles the byte code for a function and is useful to see the difference b...
Adding 'serial' to existing column in Postgres
...imary key) which currently contains unique sequential integers starting at 1, but which was not created using the 'serial' keyword.
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What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
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+100
I create...
Call a Server-side Method on a Resource in a RESTful Way
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Let's take a look a the proposed design:
ACTION http://api.animals.com/v1/dogs/1/
First off, we should not consider creating a new HTTP verb (ACTION). Generally speaking, this is undesirable for several reasons:
(1) Given only the service URI, how will a "random" programmer know the ACTION ve...
How can I check if character in a string is a letter? (Python)
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You can use str.isalpha().
For example:
s = 'a123b'
for char in s:
print(char, char.isa...
Background image jumps when address bar hides iOS/Android/Mobile Chrome
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21 Answers
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Bash if statement with multiple conditions throws an error
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Use -a (for and) and -o (for or) operations.
tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_01....
What do (lambda) function closures capture?
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Your second question has been answered, but as for your first:
what does the closure captu...