{"ScriptPreparationCode":"var array = [];\r\nfor (var i=0; i\u003C30; \u002B\u002Bi) {\r\n \tarray.push(\u002700\u0027 \u002B i);\r\n}\r\n\r\nvar map = new Map();\r\narray.forEach(item =\u003E map.set(item, true));\r\n","TestCases":[{"Name":"indexOf","Code":"for (var i=0; i\u003C100; \u002B\u002Bi) {\r\n\tarray.indexOf(\u0022404\u0022) !== -1;\r\n// \tarray.indexOf(\u0022000\u0022) !== -1;\r\n}","IsDeferred":false},{"Name":"map","Code":"for (var i=0; i\u003C100; \u002B\u002Bi) {\r\n\tconst x = map.has(\u0022404\u0022);\r\n}","IsDeferred":false}]}