{"ScriptPreparationCode":"var obj = {\r\n 1: true,\r\n 2: false,\r\n 3: true,\r\n 4: false\r\n};\r\nvar arr = [1, 3];","TestCases":[{"Name":"Object lookup","Code":"obj[1] !== undefined","IsDeferred":false},{"Name":"Array lookup","Code":"arr.includes(1)","IsDeferred":false}]}