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Ensure _.includes matches an empty string on empty strings. [closes #1275]

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jdalton
2015-06-10 18:37:09 -07:00
parent 6b8ffb2a85
commit 1a28ef3244
2 changed files with 6 additions and 7 deletions
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7
lodash.src.js
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@@ -6660,17 +6660,14 @@
collection = values(collection);
length = collection.length;
}
if (!length) {
return false;
}
if (typeof fromIndex != 'number' || (guard && isIterateeCall(target, fromIndex, guard))) {
fromIndex = 0;
} else {
fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
}
return (typeof collection == 'string' || !isArray(collection) && isString(collection))
? (fromIndex < length && collection.indexOf(target, fromIndex) > -1)
: (getIndexOf(collection, target, fromIndex) > -1);
? (fromIndex <= length && collection.indexOf(target, fromIndex) > -1)
: (!!length && getIndexOf(collection, target, fromIndex) > -1);
}
/**

6
test/test.js
View File

@@ -6244,7 +6244,9 @@
'a string': '1234'
},
function(collection, key) {
var values = _.toArray(collection);
var isStr = typeof collection == 'string',
values = _.toArray(collection),
length = values.length;
test('should work with ' + key + ' and return `true` for matched values', 1, function() {
strictEqual(_.includes(collection, 3), true);
@@ -6263,7 +6265,7 @@
_.each([4, 6, Math.pow(2, 32), Infinity], function(fromIndex) {
strictEqual(_.includes(collection, 1, fromIndex), false);
strictEqual(_.includes(collection, undefined, fromIndex), false);
strictEqual(_.includes(collection, '', fromIndex), false);
strictEqual(_.includes(collection, '', fromIndex), (isStr && fromIndex == length));
});
});