michael@0: // map.keys() and map.values() return iterators over the key or the value,
michael@0: // respectively, of each key-value pair in the map.
michael@0: 
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: var data = [["one", 1], ["two", 2], ["three", 3], ["four", 4]];
michael@0: var m = Map(data);
michael@0: 
michael@0: var ki = m.keys();
michael@0: assertIteratorNext(ki, "one");
michael@0: assertIteratorNext(ki, "two");
michael@0: assertIteratorNext(ki, "three");
michael@0: assertIteratorNext(ki, "four");
michael@0: assertIteratorDone(ki, undefined);
michael@0: 
michael@0: assertEq([k for (k of m.keys())].toSource(), ["one", "two", "three", "four"].toSource());
michael@0: assertEq([k for (k of m.values())].toSource(), [1, 2, 3, 4].toSource());
michael@0: assertEq([k for (k of m.entries())].toSource(), data.toSource());