contains.js 273 Bytes Edit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 "use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports["default"] = contains; function contains(root, n) { var node = n; while (node) { if (node === root) { return true; } node = node.parentNode; } return false; }