{"ScriptPreparationCode":"var parent = document.querySelector(\u0022.parent\u0022);\r\nvar child = document.querySelector(\u0022.child\u0022);","TestCases":[{"Name":"Contains","Code":"var x = parent.contains(child)\r\n","IsDeferred":false},{"Name":"Closest","Code":"var x = child.closest(\u0027.parent\u0027)\r\n","IsDeferred":false},{"Name":" parent walking","Code":"let p = child;\r\nwhile (p != null){ if(p == parent ) {break;} p = p.parentNode;}","IsDeferred":false}]}