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Merge pull request #671 from OutThisLife/patch-1

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ELO snippet formatting + performance
This commit is contained in:
Angelos Chalaris
2018-06-23 10:21:26 +03:00
committed by GitHub
parent 5e20dbfb43 cfda1b7841
commit 70f9d37649
1 changed files with 6 additions and 7 deletions
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13
snippets/elo.md
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@ -17,13 +17,12 @@ const elo = ([...ratings], kFactor = 32, selfRating) => {
(selfRating || rating) + kFactor * (i - expectedScore(i ? a : b, i ? b : a)); (selfRating || rating) + kFactor * (i - expectedScore(i ? a : b, i ? b : a));
if (ratings.length === 2) { if (ratings.length === 2) {
return [newRating(a, 1), newRating(b, 0)]; return [newRating(a, 1), newRating(b, 0)];
} else { }
for (let i = 0; i < ratings.length; i++) { for (let i = 0, len = ratings.length; i < len; i++) {
let j = i; let j = i;
while (j < ratings.length - 1) { while (j < len - 1) {
[ratings[i], ratings[j + 1]] = elo([ratings[i], ratings[j + 1]], kFactor); j++;
j++; [ratings[i], ratings[j]] = elo([ratings[i], ratings[j]], kFactor);
}
} }
} }
return ratings; return ratings;