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C# Sort and OrderBy comparison
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Note also that the test here sorts the list before starting the stopwatch, so we are comparing how the two algorithms compare when faced with sorted input. This may be quite different than their relative performance with unsorted input.
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Finding out whether a string is numeric or not
...nd "a valid integer representation". Furthermore, it did exactly that in a test on iOS 4.3.2. However, NSNumberFormatter did return nil.
– Tommy
May 23 '11 at 10:56
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How can I create an object and add attributes to it?
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This seems a better solution to me than unittest.mock; the latter is a bit too heavy-weight and a bit more malleable. With a mock object, simply assigning to an attribute will cause it to spring into existence; SimpleNamespace will resist that.
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Displaying better error message than “No JSON object could be decoded”
... @jxramos: The OP used Python 2.7, as evident from the traceback. A quick test on ideone.com (Python 3.7.3) shows that the stdlib json library has been updated and gives the new error message format. I don’t have time to track exact releases right now however.
– Martijn Piet...
Understanding CUDA grid dimensions, block dimensions and threads organization (simple explanation) [
...e synchronized using __syncthreads.
I would greatly appreciate if someone test this again for a more accurate piece of information.
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How do I do an OR filter in a Django query?
...o.db.models import Q
query = Q(first_name='mark')
query.add(Q(email='mark@test.com'), Q.OR)
query.add(Q(last_name='doe'), Q.AND)
queryset = User.objects.filter(query)
This ends up with a query like :
(first_name = 'mark' or email = 'mark@test.com') and last_name = 'doe'
This way there is no n...
How can I perform a str_replace in JavaScript, replacing text in JavaScript?
...unlikely to beat indexing into a string in the common case.
For a simple test run on the JS perf page, I've documented some of the results:
<script>
// Setup
var startString = "xxxxxxxxxabcxxxxxxabcxx";
var endStringRegEx = undefined;
var endStringString = undefined;
var en...
how to convert array values from string to int?
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but if you have string 'test', you got: array([0]=> 0 )
– Dmitry Dubovitsky
Oct 9 '13 at 13:39
10
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Stop form refreshing page on submit
...rom refreshing even if there is a Javascript error which can be useful for testing and development.
– jjz
Apr 30 '14 at 19:47
14
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Quicksort vs heapsort
...? What Quicksort has that is so special over others implementations?
I've tested the algorithms myself and I've seen that Quicksort has something special indeed. It runs fast, much faster than Heap and Merge algorithms.
The secret of Quicksort is: It almost doesn't do unnecessary element swaps. Sw...