{"ScriptPreparationCode":"var map = new Map();\r\nvar obj = Object.create(null);\r\n\r\nfor (let i = 0; i \u003C 20; \u002B\u002Bi) {\r\n map.set(i, i)\r\n obj[i] = i\r\n}\r\n\r\nvar i = 0, count = 1000, a;","TestCases":[{"Name":"Map lookup","Code":"for (i = 0; i \u003C count; i\u002B\u002B) {\r\n a = map.get(i % 20);\r\n}","IsDeferred":false},{"Name":"Obj lookup","Code":"for (i = 0; i \u003C count; i\u002B\u002B) {\r\n a = obj[i % 20];\r\n}","IsDeferred":false}]}