Thu, 22 Jan 2015 13:21:57 +0100
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
michael@0 | 1 | // Setting a Map key to undefined, or a missing argument, isn't the same as deleting it. |
michael@0 | 2 | |
michael@0 | 3 | var m = new Map; |
michael@0 | 4 | m.set(42, undefined); |
michael@0 | 5 | assertEq(m.has(42), true); |
michael@0 | 6 | assertEq(m.get(42), undefined); |
michael@0 | 7 | |
michael@0 | 8 | m.set(42, "wrong"); |
michael@0 | 9 | m.set(42); |
michael@0 | 10 | assertEq(m.has(42), true); |
michael@0 | 11 | assertEq(m.get(42), undefined); |
michael@0 | 12 | |
michael@0 | 13 | m.set(); |
michael@0 | 14 | assertEq(m.has(undefined), true); |
michael@0 | 15 | assertEq(m.get(undefined), undefined); |