setKeyValue(obj, key, value)

Set the property on Map-like obj, identified by the String, Symbol or Object value key, to the value value. The default behavior can be overridden on obj by implementing @@can.setKeyValue, otherwise native named property access is used for string keys, and Object.defineProperty is used to set symbols.

var foo = new DefineMap({ bar: "baz" });

canReflect.setKeyValue(foo, "bar", "quux");
foo[bar]; // -> "quux"