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Ensure _.sortBy is stable for undefined values.

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Former-commit-id: bf250150d27de050ea7a6fa376aacdc8d1ba7716
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John-David Dalton
2012-09-06 22:35:20 -07:00
parent fa9df75cf7
commit 9a7d9e7bb8
2 changed files with 7 additions and 1 deletions
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3
lodash.js
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@@ -757,6 +757,9 @@
a = a.criteria;
b = b.criteria;
if (a === b) {
return ai < bi ? -1 : 1;
}
if (a === undefined) {
return 1;
}

5
test/test.js
View File

@@ -1340,7 +1340,10 @@
new Pair(1, 5), new Pair(1, 6),
new Pair(2, 1), new Pair(2, 2),
new Pair(2, 3), new Pair(2, 4),
new Pair(2, 5), new Pair(2, 6)
new Pair(2, 5), new Pair(2, 6),
new Pair(undefined, 1), new Pair(undefined, 2),
new Pair(undefined, 3), new Pair(undefined, 4),
new Pair(undefined, 5), new Pair(undefined, 6)
];
var actual = _.sortBy(collection, function(pair) {