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Best practices for in-app database migration for Sqlite
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RngbusRngbus
2,52133 gold badges1919 silver badges1515 bronze badges
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Deleting all pending tasks in celery / rabbitmq
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303
From the docs:
$ celery -A proj purge
or
from proj.celery import app
app.control.purge()
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Difference between toFixed() and toPrecision()?
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134
toFixed(n) provides n length after the decimal point; toPrecision(x) provides x total length.
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How can I declare and use Boolean variables in a shell script?
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fi
Original Answer
Caveats: https://stackoverflow.com/a/21210966/89391
the_world_is_flat=true
# ...do something interesting...
if $the_world_is_flat ; then
echo 'Be careful not to fall off!'
fi
From: Using boolean variables in Bash
The reason the original answer is included here is b...
How to call base.base.method()?
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answered Sep 14 '15 at 10:23
EvkEvk
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Read a variable in bash with a default value
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squarecandy
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answered Apr 15 '10 at 3:45
ghostdog74ghostdog...
Grab a segment of an array in Java without creating a new array on heap
... was introduced in Java 6 (late 2006?):
byte [] a = new byte [] {0, 1, 2, 3, 4, 5, 6, 7};
// get a[4], a[5]
byte [] subArray = Arrays.copyOfRange(a, 4, 6);
share
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improve this answer
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How to determine if an NSDate is today?
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310
In macOS 10.9+ & iOS 8+, there's a method on NSCalendar/Calendar that does exactly this!
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libxml/tree.h no such file or directory
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edited May 23 '17 at 11:54
Community♦
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answered Sep 15 '09 at 18:21
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