{"ScriptPreparationCode":"/*your preparation JavaScript code goes here\r\nTo execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/\r\nasync function globalMeasureThatScriptPrepareFunction() {\r\n // This function is optional, feel free to remove it.\r\n // await someThing();\r\n}","TestCases":[{"Name":"className","Code":"let element = document.getElementById(\u0022foo\u0022);\r\nlet i = 1000;\r\nwhile (i--) {\r\n\tlet selector = \u0022.\u0022 \u002B element.className.trim().replace(/\\s\u002B/g, \u0027.\u0027);\r\n}","IsDeferred":false},{"Name":"classList with array from","Code":"let element = document.getElementById(\u0022foo\u0022);\r\nlet i = 1000;\r\nwhile (i--) {\r\n\tlet selector = \u0022.\u0022 \u002B Array.from(element.classList).join(\u0027.\u0027);\r\n}","IsDeferred":false},{"Name":"classList with spread operator","Code":" let element = document.getElementById(\u0022foo\u0022);\r\n let i = 1000;\r\n while (i--) {\r\n let selector = \u0022.\u0022 \u002B [...element.classList].join(\u0027.\u0027);\r\n }","IsDeferred":false}]}