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Python call function within class
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Jeff MercadoJeff Mercado
108k2424 gold badges213213 silver badges237237 bronze badges
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Check if a Postgres JSON array contains a string
...ents on a table of 1,000,000 rabbits where each rabbit likes two foods and 10% of them like carrots:
d=# -- Postgres 9.3 solution
d=# explain analyze select info->>'name' from rabbits where exists (
d(# select 1 from json_array_elements(info->'food') as food
d(# where food::text = '"carr...
Does ARC support dispatch queues?
...ng answer…
If your deployment target is lower than iOS 6.0 or Mac OS X 10.8
You need to use dispatch_retain and dispatch_release on your queue. ARC does not manage them.
If your deployment target is iOS 6.0 or Mac OS X 10.8 or later
ARC will manage your queue for you. You do not need to (an...
Trim a string based on the string length
I want to trim a string if the length exceeds 10 characters.
11 Answers
11
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How to delete multiple values from a vector?
I have a vector like: a = c(1:10) and I need to remove multiple values, like: 2, 3, 5
8 Answers
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What is the difference between _tmain() and main() in C++?
...provide?
– joshcomley
May 22 '09 at 10:03
2
-1 None of the three options listed are practical. Th...
How to create the most compact mapping n → isprime(n) up to a limit N?
...sent every odd number with one bit e.g. for the given range of numbers (1, 10], starts at 3: 1110
31 Answers
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Backporting Python 3 open(encoding=“utf-8”) to Python 2
...or option 2 ;)
– Jonathan Komar
Jun 10 '15 at 15:37
3
@macmadness86 You need to use a byte regexp...
What's Pros and Cons: putting javascript in head and putting just before the body close
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answered Mar 16 '10 at 0:39
David JohnstoneDavid Johnstone
22.4k1414 gold badges6464 silver badges7171 bronze badges
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Given an array of numbers, return array of products of all other numbers (no division)
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answered Apr 21 '10 at 6:09
Michael AndersonMichael Anderson
57.2k77 gold badges110110 silver badges159159 bronze badges
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