js/src/jit-test/tests/collections/Map-set-undefined.js@6474c204b198 (annotated)
js/src/jit-test/tests/collections/Map-set-undefined.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| 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); |
