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Merge pull request #523 from chrisleishman/restrict

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Add _.restrict(source, *keys)
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Jeremy Ashkenas
2012-04-02 11:51:56 -07:00
parent 180b8b0c83 7c95237845
commit 4fa0a9f4d5
3 changed files with 33 additions and 0 deletions
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10
test/objects.js
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@@ -41,6 +41,16 @@ $(document).ready(function() {
equal(_.keys(result).join(''), 'ab', 'extend does not copy undefined values');
});
test("objects: restrict", function() {
var result;
result = _.restrict({a:1, b:2, c:3}, 'a', 'c');
ok(_.isEqual(result, {a:1, c:3}), 'can restrict properties to those named');
result = _.restrict({a:1, b:2, c:3}, ['b', 'c']);
ok(_.isEqual(result, {b:2, c:3}), 'can restrict properties to those named in an array');
result = _.restrict({a:1, b:2, c:3}, ['a'], 'b');
ok(_.isEqual(result, {a:1, b:2}), 'can restrict properties to those named in mixed args');
});
test("objects: defaults", function() {
var result;
var options = {zero: 0, one: 1, empty: "", nan: NaN, string: "string"};