var string = "passw)odas4gsdfsdf";

{"ScriptPreparationCode":"var string = \u0022passw)odas4gsdfsdf\u0022;","TestCases":[{"Name":"Regex","Code":"/^[a-z0-9]\u002B$/i.test(string)","IsDeferred":false},{"Name":"charCodeAt","Code":"function isAlphaNumeric(str) {\r\n var code, i, len;\r\n\r\n for (i = 0, len = str.length; i \u003C len; i\u002B\u002B) {\r\n code = str.charCodeAt(i);\r\n if (!(code \u003E 47 \u0026\u0026 code \u003C 58) \u0026\u0026 // numeric (0-9)\r\n !(code \u003E 64 \u0026\u0026 code \u003C 91) \u0026\u0026 // upper alpha (A-Z)\r\n !(code \u003E 96 \u0026\u0026 code \u003C 123)) { // lower alpha (a-z)\r\n return false;\r\n }\r\n }\r\n return true;\r\n};\r\n\r\nisAlphaNumeric(string)","IsDeferred":false}]}