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How do I convert an interval into a number of hours with postgres?
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321
Probably the easiest way is:
SELECT EXTRACT(epoch FROM my_interval)/3600
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How to get the return value from a thread in python?
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In Python 3.2+, stdlib concurrent.futures module provides a higher level API to threading, including passing return values or exceptions from a worker thread back to the main thread:
import concurrent.futures
def foo(bar):
print(...
Should I use the Reply-To header when sending emails as a service to others?
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3 Answers
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How to return an NSMutableArray from an NSSet
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“Width equals height” constraint in Interface Builder
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What is the difference between object keys with quotes and without quotes?
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answered Dec 3 '10 at 18:10
bdukesbdukes
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PreparedStatement IN clause alternatives?
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Regex: Remove lines containing “help”, etc
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answered May 5 '11 at 14:31
stemastema
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Sleep in JavaScript - delay between actions
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You can use setTimeout to achieve a similar effect:
var a = 1 + 3;
var b;
setTimeout(function() {
b = a + 4;
}, (3 * 1000));
This doesn't really 'sleep' JavaScript—it just executes the function passed to setTimeout after a certain duration (specified in milliseconds). Although it ...