The Tor Browser: js/src/jit-test/tests/collections/Map-set-undefined.js@7e26c7da4463

js/src/jit-test/tests/collections/Map-set-undefined.js@7e26c7da4463

Wed, 31 Dec 2014 06:55:50 +0100

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

     1 // Setting a Map key to undefined, or a missing argument, isn't the same as deleting it.

     3 var m = new Map;

     4 m.set(42, undefined);

     5 assertEq(m.has(42), true);

     6 assertEq(m.get(42), undefined);

     8 m.set(42, "wrong");

     9 m.set(42);

    10 assertEq(m.has(42), true);

    11 assertEq(m.get(42), undefined);

    13 m.set();

    14 assertEq(m.has(undefined), true);

    15 assertEq(m.get(undefined), undefined);