{"ScriptPreparationCode":null,"TestCases":[{"Name":"classlist","Code":"var element = document.getElementById(\u0022foo\u0022);\r\nvar i = 1000;\r\nwhile (i--) {\r\n\telement.classList.add(\u0022bar\u0022);\r\n}","IsDeferred":false},{"Name":"style","Code":"var element = document.getElementById(\u0022foo\u0022);\r\nvar i = 1000;\r\nwhile (i--) {\r\n\telement.style.display = \u0027none\u0027;\r\n}","IsDeferred":false}]}