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Optimize _.contains by using native String#contains when available.

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This commit is contained in:
John-David Dalton
2013-12-18 23:02:39 -08:00
parent ca55748103
commit 1c4652448c
8 changed files with 332 additions and 304 deletions
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10
test/test.js
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@@ -1151,18 +1151,20 @@
strictEqual(_.contains(collection, 1, 2), true);
});
test('should work with ' + key + ' and a `fromIndex` >= collection\'s length', 4, function() {
test('should work with ' + key + ' and a `fromIndex` >= `collection.length`', 6, function() {
strictEqual(_.contains(collection, 1, 6), false);
strictEqual(_.contains(collection, undefined, 6), false);
strictEqual(_.contains(collection, '', 6), false);
strictEqual(_.contains(collection, 1, 8), false);
strictEqual(_.contains(collection, undefined, 8), false);
strictEqual(_.contains(collection, '', 8), false);
});
test('should work with ' + key + ' and a negative `fromIndex`', 1, function() {
strictEqual(_.contains(collection, 2, -3), true);
});
test('should work with ' + key + ' and a negative `fromIndex` <= negative collection\'s length', 2, function() {
test('should work with ' + key + ' and a negative `fromIndex` <= negative `collection.length`', 2, function() {
strictEqual(_.contains(collection, 1, -6), true);
strictEqual(_.contains(collection, 2, -8), true);
});
@@ -1188,6 +1190,10 @@
});
});
test('should not be possible to perform a binary search', function() {
strictEqual(_.contains([3, 2, 1], 3, true), true);
});
test('should be aliased', 1, function() {
strictEqual(_.include, _.contains);
});