{"ScriptPreparationCode":"var obj = { a: 1, b: 2, c: 3, d: 4, e: 5 };","TestCases":[{"Name":"undefined","Code":"obj[\u0022f\u0022] === undefined","IsDeferred":false},{"Name":"in","Code":"!(\u0022f\u0022 in obj)","IsDeferred":false}]}