{"ScriptPreparationCode":"var arr = [32, 37, 38, 39, 40];\r\nvar map = {};\r\nvar s = new Set();\r\nfor (const key of arr) {\r\n map[key] = true;\r\n s.add(key);\r\n}","TestCases":[{"Name":"IndexOf","Code":"const found = Boolean(arr.indexOf(65))","IsDeferred":false},{"Name":"Includes","Code":"const found = arr.includes(65)","IsDeferred":false},{"Name":"Map","Code":"const found = Boolean(map[65])","IsDeferred":false},{"Name":"Set","Code":"const found = s.has(65)","IsDeferred":false}]}