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Algorithm to return all combinations of k elements from n
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Usage:
var result = Combinations(new[] { 1, 2, 3, 4, 5 }, 3);
Result:
123
124
125
134
135
145
234
235
245
345
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Linux: compute a single hash for a given folder & contents?
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123
One possible way would be:
sha1sum path/to/folder/* | sha1sum
If there is a whole directory ...
What's the difference between interface and @interface in java?
...above annotation, you could use code like this:
@MyAnnotation(
value="123",
name="Jakob",
age=37,
newNames={"Jenkov", "Peterson"}
)
public class MyClass {
}
Reference - http://tutorials.jenkov.com/java/annotations.html
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How to return result of a SELECT inside a function in PostgreSQL?
...guity
END
$func$ LANGUAGE plpgsql;
Call:
SELECT * FROM word_frequency(123);
Explanation:
It is much more practical to explicitly define the return type than simply declaring it as record. This way you don't have to provide a column definition list with every function call. RETURNS TABLE is ...
C# vs Java Enum (for those new to C#)
...t threw it in to show usage
double earthWeight = double.Parse("123");
double earthMass = earthWeight / pEarth.SurfaceGravity();
foreach (Planet p in Planet.Values)
Console.WriteLine($"Your weight on {p} is {p.SurfaceWeight(mass)}");
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Get last n lines of a file, similar to tail
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123
This may be quicker than yours. Makes no assumptions about line length. Backs through the fi...
Is there a cross-browser onload event when clicking the back button?
...nswered Oct 14 '08 at 14:32
user123444555621user123444555621
123k2323 gold badges101101 silver badges120120 bronze badges
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What is the @Html.DisplayFor syntax for?
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vcsjonesvcsjones
123k2727 gold badges272272 silver badges271271 bronze badges
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Input type=password, don't let browser remember the password
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123
Try using autocomplete="off". Not sure if every browser supports it, though. MSDN docs here....
Converting between datetime, Timestamp and datetime64
....datetime64('2017-10-24T05:30:45.67') - np.datetime64('2017-10-22T12:35:40.123')
numpy.timedelta64(147305547,'ms')
Pandas Timestamp and Timedelta build much more functionality on top of NumPy
A pandas Timestamp is a moment in time very similar to a datetime but with much more functionality. You c...