data-structure-algebra/doubly-linked-list

import assert from 'assert';

import Node from './Node.js';

/**
 * Concatenate two input lists.
 *
 * @param {Node} z Last node of first input list.
 * @param {Node} y First node of second input list.
 */
export default function _concat(z, y) {
    assert(z instanceof Node);
    assert(y instanceof Node);
    z.next = y;
    y.prev = z;
}