{"ScriptPreparationCode":"var arr = Array(100000).fill(1).map((_, index) =\u003E index);\r\narr[arr.length - 1] = -1;\r\n\r\nvar set = new Set();\r\n\r\narr.forEach((item) =\u003E set.add(item));","TestCases":[{"Name":"arr.includes","Code":"arr.includes(-1);","IsDeferred":false},{"Name":"set.has","Code":"set.has(-1)","IsDeferred":false}]}