{"ScriptPreparationCode":"var array = [];\r\nvar obj = {};\r\n[new Array(10000)].forEach(function(num){\r\n array.push(num);\r\n obj[num] = num;\r\n});","TestCases":[{"Name":"check with array","Code":"if (array.includes(9999)) {\r\n console.log(\u0027test 1\u0027);\r\n}","IsDeferred":false},{"Name":"check with obj","Code":"if (obj[9999]) {\r\n console.log(\u0027test 2\u0027);\r\n}","IsDeferred":false}]}