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How to read the RGB value of a given pixel in Python?
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edited May 3 '18 at 10:03
Matthew Smith
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answered Sep 26 '08 a...
Find difference between timestamps in seconds in PostgreSQL
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edited May 20 '14 at 15:58
altermativ
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a...
What is the difference between Int and Integer?
...teger. Implementations vary,
although it is guaranteed to be at
least 30 bits.
Source: The Haskell Wikibook. Also, you may find the Numbers section of A Gentle Introduction to Haskell useful.
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How to use random in BATCH script?
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%RANDOM% gives you a random number between 0 and 32767.
Using an expression like SET /A test=%R...
Increment a database field by 1
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answered May 4 '10 at 4:41
SampsonSampson
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How to set an environment variable only for the duration of the script?
On Linux (Ubuntu 11.04) in bash, is it possible to temporarily set an environment variable that will only be different from the normal variable for the duration of the script? For example, in a shell script, making an app that saves to HOME portable by temporarily setting HOME to a folder in the pre...
Using the Swift if let with logical AND operator &&
...r as? UITabBarController where tabBarController.viewControllers.count > 0 {
println("do stuff")
}
This uses the where clause.
Another example, this time casting AnyObject to Int, unwrapping the optional, and checking that the unwrapped optional meets the condition:
if let w = width a...
Remove non-numeric characters (except periods and commas) from a string
...od/full stop as follows:
$testString = '12.322,11T';
echo preg_replace('/[^0-9,.]+/', '', $testString);
The pattern can also be expressed as /[^\d,.]+/
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How do I clone a subdirectory only of a Git repository?
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Saurabh P Bhandari
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answered Mar 1 '09 at 18:00
Jörg W MittagJörg W M...
How do I view all commits for a specific day?
...n Bartholomew!
The answer is to specify the time, e.g. git log --after="2013-11-12 00:00" --before="2013-11-12 23:59"
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