{"ScriptPreparationCode":null,"TestCases":[{"Name":"guard","Code":"function guard (val) {\r\n return val !== undefined \u0026\u0026 val !== null;\r\n}\r\n\r\nguard(undefined)\r\nguard(null)\r\nguard({})","IsDeferred":false},{"Name":"!!","Code":"!!undefined\r\n!!null","IsDeferred":false}]}