{"ScriptPreparationCode":"var obj = { prop: \u0022value\u0022 };","TestCases":[{"Name":"typeof ","Code":"return (typeof obj.prop === \u0022undefined\u0022)","IsDeferred":false},{"Name":"in","Code":"return (\u0022prop\u0022 in obj)","IsDeferred":false},{"Name":"== undefined","Code":"return (obj.prop === undefined)","IsDeferred":false}]}