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Flatten an irregular list of lists
...ecursion is never needed. In this specific case using recursion is not the best solution as it will crash on deeply nested lists (depth > 1000). But if you don't aim at having something safe, then yes recursive function are better as they are way easier to read/write.
– cgla...
How can I find the last element in a List?
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Yep this is the best way, Last and LastOrDefault are optimised for List<>s
– chillitom
May 24 '13 at 15:08
2
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How to count the frequency of the elements in an unordered list?
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Counting the frequency of elements is probably best done with a dictionary:
b = {}
for item in a:
b[item] = b.get(item, 0) + 1
To remove the duplicates, use a set:
a = list(set(a))
share
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What are dictionary view objects?
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Ok, I'm not clear on the implementation yet, but it's the best answer so far.
– e-satis
Jan 22 '12 at 14:54
2
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Best way to extract a subvector from a vector?
...mmunicates the rate of growth with respect to how N changes. Johann: It's best not to use one variable name in two ways. We'd normally say either O(Y-X), or we'd say O(Z) where Z=Y-X.
– Mooing Duck
Sep 11 '13 at 17:51
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Linq style “For Each” [duplicate]
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Using the ToList() extension method is your best option:
someValues.ToList().ForEach(x => list.Add(x + 1));
There is no extension method in the BCL that implements ForEach directly.
Although there's no extension method in the BCL that does this, there is still...
How do I “Add Existing Item” an entire directory structure in Visual Studio?
...or VS2010 (At least as far as I can tell). Tom's answer on 7/10/12 was the best solution for me in VS2010
– BLSully
Aug 13 '12 at 16:08
8
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JavaScript pattern for multiple constructors
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This is the best answer. The others resort to parsing arrays and doing a bunch of unnecessary work.
– Blane Townsend
Aug 13 '19 at 14:56
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What are best practices that you use when writing Objective-C and Cocoa? [closed]
...Outlets
Historically, memory management of outlets has been poor.
Current best practice is to declare outlets as properties:
@interface MyClass :NSObject {
NSTextField *textField;
}
@property (nonatomic, retain) IBOutlet NSTextField *textField;
@end
Using properties makes the memory manageme...
SparseArray vs HashMap
...Integer, T> so that you get a memory efficient Map implementation - the best of both worlds.
– Paul Boddington
Aug 29 '14 at 2:34
3
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