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_.isEqual: Streamline the deep comparison algorithm and remove the dependency on _.keys.

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This commit is contained in:
Kit Goncharov
2011-07-13 10:48:16 -06:00
parent b6a02fa6bb
commit 365eea6aa7
2 changed files with 16 additions and 5 deletions
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6
test/objects.js
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@@ -65,6 +65,11 @@ $(document).ready(function() {
});
test("objects: isEqual", function() {
function Foo(){ this.own = 'a'; }
function Bar(){ this.own = 'a'; }
Foo.prototype.inherited = 1;
Bar.prototype.inherited = 2;
var moe = {name : 'moe', lucky : [13, 27, 34]};
var clone = {name : 'moe', lucky : [13, 27, 34]};
ok(moe != clone, 'basic equality between objects is false');
@@ -80,6 +85,7 @@ $(document).ready(function() {
ok(_.isEqual({isEqual: function () { return true; }}, {}), 'first object implements `isEqual`');
ok(_.isEqual({}, {isEqual: function () { return true; }}), 'second object implements `isEqual`');
ok(!_.isEqual({x: 1, y: undefined}, {x: 1, z: 2}), 'objects with the same number of undefined keys are not equal');
ok(!_.isEqual(new Foo, new Bar), 'objects with different inherited properties are not equal');
ok(!_.isEqual(_({x: 1, y: undefined}).chain(), _({x: 1, z: 2}).chain()), 'wrapped objects are not equal');
equals(_({x: 1, y: 2}).chain().isEqual(_({x: 1, y: 2}).chain()).value(), true, 'wrapped objects are equal');