Code (Javascript)

 links.forEach((link) => {
          const origin = link.getOrigin(); //get the origin
          const destination = link.getDestination(); //get the destination

          const originIndex = nodes.findIndex((node) => node === origin); // get the index of the origin node
          const destinationIndex = nodes.findIndex(
            (node) => node === destination //get the index of destination node
          );
          link.setOrigin(newNodes[originIndex]);
          link.setDestination(newNodes[destinationIndex]);