Method typeof

src/main/java/org/dynjs/runtime/Types.java:476–488

(ExecutionContext context, Object o)

    }

    public static String typeof(ExecutionContext context, Object o) {
        // 11.4.3
        Object val = o;
        if (o instanceof Reference) {
            Reference r = (Reference) o;
            if (r.isUnresolvableReference()) {
                return "undefined";
            }
            val = getValue(context, o);
        }

        return type(val);
    }

    public static Object compareRelational(ExecutionContext context, Object x,
            Object y, boolean leftFirst) {