{"ScriptPreparationCode":"var arr = Array.from({ length: 10 }, (_, i) =\u003E i \u002B 1);\r\nvar a = [...arr];\r\nvar b = new Set(arr);\r\nvar c = Object.fromEntries(arr.map((v) =\u003E [v, true]));","TestCases":[{"Name":"Array#includes()","Code":"return a.includes(9)","IsDeferred":false},{"Name":"Set#has()","Code":"return b.has(9)","IsDeferred":false},{"Name":"Object.hasOwn()","Code":"return Object.hasOwn(c, \u00279\u0027)","IsDeferred":false}]}