{"ScriptPreparationCode":"const reduce = (map, reducer, accumulator) =\u003E {\r\n let iter = map[Symbol.iterator]();\r\n let item;\r\n\r\n if (accumulator === undefined \u0026\u0026 (item = iter.next())) {\r\n if (item.done) return accumulator;\r\n accumulator = item.value[1];\r\n }\r\n\r\n while ((item = iter.next()) \u0026\u0026 !item.done)\r\n accumulator = reducer(accumulator, item.value[1], item.value[0]);\r\n return accumulator;\r\n};\r\n\r\nconst randomMap = new Map(Array.from({length: 1000000}, (_, i) =\u003E [i, Math.floor(Math.random() * 100)]));\r\nconst sumValues = (a, b) =\u003E a \u002B b;\r\nconst sumKeyValues = (a, b) =\u003E a \u002B b[1];","TestCases":[{"Name":"Vanilla JS Reduce on a Map","Code":"Array.from(randomMap).reduce(sumKeyValues, 0);","IsDeferred":false},{"Name":"Lodash Reduce on a Map","Code":"_.reduce(_.toArray(randomMap), sumKeyValues, 0);","IsDeferred":false},{"Name":"Custom Reduce on a Map","Code":"reduce(randomMap, sumValues, 0);","IsDeferred":false}]}