getOwnEnumerableKeys(obj)

Return all keys on obj which have been defined as enumerable, either from explicitly setting enumerable on the property descriptor, or by using = to set the value of the property without a key descriptor, but excluding properties that only exist on obj's prototype chain. The default behavior can be overridden by implementing @@can.getOwnEnumerableKeys on obj. By default, canReflect.getOwnEnumerableKeys will use @@can.getOwnKeys to retrieve the set of keys and @@can.getOwnKeyDescriptor to filter for those which are enumerable. If either symbol is absent from obj, Object.keys is used.

var foo = new DefineMap({ bar: "baz", [canSymbol.for("quux")]: "thud" });
Object.defineProperty(foo, "jeek", {
  enumerable: true,
  value: "plonk"
});

canReflect.getOwnEnumerableKeys(foo); // -> ["bar", "jeek"]