gistfile1.txt

        public static int BindJSObject(int jsId, int mappedType)
        {
            JSObject? obj;
            lock (_boundObjects)
            {
                if (!_boundObjects.TryGetValue(jsId, out obj))
                {
                  IntPtr jsIntPtr = (IntPtr)jsId;
                  obj = mappedType > 0 ? BindJSType(jsIntPtr, mappedType) : new JSObject(jsIntPtr);
                  _boundObjects.Add (jsId, obj);
                }
            }
            
            return (int)(IntPtr)obj?.Handle ?? 0;
        }