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Java HashMap performance optimization / alternative
...ted out the hashCode() method was to blame. It was only generating around 20,000 codes for 26 million distinct objects. That is an average of 1,300 objects per hash bucket = very very bad. However if I turn the two arrays into a number in base 52 I am guaranteed to get a unique hash code for every o...
How to match all occurrences of a regex
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Andrew Marshall
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answered Sep 17 '08 at 5:53
JeanJean
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xUnit : Assert two List are equal?
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edited May 29 '18 at 15:20
answered Jan 7 '09 at 9:33
Kons...
C# how to create a Guid value?
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answered Feb 26 '10 at 19:02
DavidDavid
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Selecting the first “n” items with jQuery
...d to select just the first "n" items from the page, for example the first 20 links instead of selecting all of them with the usual
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converting double to integer in java
..., the result is equal to the value of the expression:
(long)Math.floor(a + 0.5d)
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Why is this F# code so slow?
A Levenshtein implementation in C# and F#. The C# version is 10 times faster for two strings of about 1500 chars. C#: 69 ms, F# 867 ms. Why? As far as I can tell, they do the exact same thing? Doesn't matter if it is a Release or a Debug build.
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Bash script to receive and repass quoted parameters
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70
#!/bin/bash
echo $*
bash myecho.sh "$@"
Note the "$@" construct is not bash specific and shoul...
(![]+[])[+[]]… Explain why this works
..., for example.
![]; // false, it was truthy
!{}; // false, it was truthy
!0; // true, it was falsey
!NaN; // true, it was falsey
After it, we have the second operand of the addition, an empty Array, [], this is made just to convert the false value to String, because the string representation of...
Can you make just part of a regex case-insensitive?
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answered Sep 4 '08 at 12:35
EspoEspo
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