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根据迭代器函数计算数组的平均值。
import { meanBy } from '@base-web-kits/base-tools-ts'; const objects = [{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }]; meanBy(objects, (o) => o.n); // 结果: 5
array (Array)
iteratee (Function)
(number)