{"ScriptPreparationCode":"var obj = {}\r\nnew Array(1000).map((item, index) =\u003E {\r\n obj[index] = index\r\n})","TestCases":[{"Name":"Object.keys","Code":"!!Object.keys(obj).length","IsDeferred":false},{"Name":"for key .. in ","Code":"for(let key in obj){\r\n\treturn true;\r\n}\r\nreturn false","IsDeferred":false}]}