{"ScriptPreparationCode":"var obj = new Object()\r\nvar keys = (new Array(10000)).fill(0).map((x, i) =\u003E { return i \u002B 1 })\r\nkeys.forEach((x) =\u003E { obj[\u0027prop\u0027 \u002B x] = x })","TestCases":[{"Name":"for in Object.keys","Code":"const keys = Object.keys(obj);\r\nfor (let i = 0; i \u003C keys.length; i \u002B= 1){\r\n console.log(keys[i]);\r\n}","IsDeferred":false},{"Name":"foreach Object.keys","Code":"Object.keys(obj).forEach(function(key) {\r\n console.log(key);\r\n});","IsDeferred":false}]}