{"ScriptPreparationCode":"var obj = {a:1, b:2};","TestCases":[{"Name":"Delete","Code":"delete obj.a;\r\ndelete obj.b;\r\ndelete obj.c;\r\ndelete obj.d;","IsDeferred":false},{"Name":"Set undefined","Code":"obj.a = undefined;\r\nobj.b = undefined;\r\nobj.c = undefined;\r\nobj.d = undefined;","IsDeferred":false},{"Name":"in/delete","Code":"if (\u0022a\u0022 in obj) {\r\n\tdelete obj.a;\r\n}\r\nif (\u0022a\u0022 in obj) {\r\n\tdelete obj.b;\r\n}\r\nif (\u0022a\u0022 in obj) {\r\n\tdelete obj.c;\r\n}\r\nif (\u0022a\u0022 in obj) {\r\n\tdelete obj.d;\r\n}","IsDeferred":false}]}