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Returning the product of a list
...her start with a float type list by doing np.prod(np.arange(5.0,101.0)) or convert it to float by doing np.prod(np.array(range(5,101)).astype(np.float64)). Note that NumPy uses np.float64 instead of float. I don't know the difference.
– Wood
Jun 4 '19 at 6:45
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How I can I lazily read multiple JSON values from a file/stream in Python?
...lueError as e:
f.seek(start_pos)
end_pos = int(re.match('Extra data: line \d+ column \d+ .*\(char (\d+).*\)',
e.args[0]).groups()[0])
json_str = f.read(end_pos)
obj = json.loads(json_str)
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Frequency table for a single variable
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Is there an easy way to convert these counts to proportions?
– dsaxton
Jul 31 '15 at 23:53
7
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Getting a slice of keys from a map
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Is there a way to convert this to []string?
– Doron Behar
May 29 '19 at 15:13
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How do I clone a generic list in C#?
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I think List.ConvertAll might do this in faster time, since it can pre-allocate the entire array for the list, versus having to resize all the time.
– MichaelGG
Oct 21 '08 at 17:43
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How to initialize a List to a given size (as opposed to capacity)?
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Create an array with the number of items you want first and then convert the array in to a List.
int[] fakeArray = new int[10];
List<int> list = fakeArray.ToList();
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improv...
SQL Server SELECT into existing table
...(SELECT DISTINCT
SUBSTRING(
(
SELECT ', table1.' + SYSCOL1.name AS [text()]
FROM sys.columns SYSCOL1
WHERE SYSCOL1.object_id = SYSCOL2.object_id and SYSCOL1.is_identity <> 1
ORDER BY SYSCOL1.object_id
FOR XML PATH ('')
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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
... use [NSNumber numberWithInt:] etc.... and in the receiving method you can convert the number into your format as [number int] or [number double].
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Way to get number of digits in an int?
...I didn't realise all these if else statements would be SO much faster than converting the int to String then calling .length. +1
– Ogen
Aug 30 '14 at 4:01
15
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Iterate through the fields of a struct in Go
...ce value then represents the
value of the field.
There is no function to convert the value of the field to a concrete type as there are,
as you may know, no generics in go. Thus, there is no function with the signature GetValue() T
with T being the type of that field (which changes of course, depe...