{"ScriptPreparationCode":"window.obj = {};\r\n\r\nfor (let i = 0, len = 1000000; i \u003C len; i\u002B\u002B) {\r\n obj[\u0027key\u0027 \u002B i] = \u0027value\u0027 \u002B i;\r\n}","TestCases":[{"Name":"Object.keys","Code":"Object.keys(window.obj).length === 0;","IsDeferred":false},{"Name":"_.isEmpty","Code":"_.isEmpty(window.obj);","IsDeferred":false}]}