{"ScriptPreparationCode":null,"TestCases":[{"Name":"lastIndexOf","Code":"var str = \u0022Hello world, welcome to the universe.\u0022;\r\nvar n = str.lastIndexOf(\u0022o\u0022);","IsDeferred":false},{"Name":"indexOf","Code":"var str = \u0022Hello world, welcome to the universe.\u0022;\r\nvar n = lastIndexOf(str, \u0027o\u0027)\r\nfunction lastIndexOf(str, sbj){\r\nfor(let i=str.length; i !== 0; i-- ) {\r\n if(str[n] === sbj){\r\n return i\r\n }\r\n}}","IsDeferred":false}]}