Touch Detection on Object in javascript

i want to move my character to the object which i touched kindly please help i m new in unity. i found a code but it is in c# and i need in javascript.

 if (Input.touchCount == 1)
         {
             Vector3 wp = Camera.main.ScreenToWorldPoint(Input.GetTouch(0).position);
             Vector2 touchPos = new Vector2(wp.x, wp.y);
             if (collider2D == Physics2D.OverlapPoint(touchPos))
             {
                 left_move = 1;
                 
             }
         }