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* Translate Simplified Chinese * Supplement the omitted * Supplement the omitted * Supplement the omitted * Supplement the omitted * Supplement the omitted * Supplement the omitted * Supplement the omitted * Supplement the omitted * Supplement the omitted * Update docs/.vitepress/shared.mts --------- Co-authored-by: Sojin Park <raon0211@gmail.com>
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uniqBy
返回一个新数组，仅包含原始数组中基于 mapper 函数返回值的唯一元素。
签名
function uniqBy<T, U>(arr: T[], mapper: (item: T) => U): T[];
参数
arr(T[]): 要处理的数组。mapper((item: T) => U): 用于转换数组元素的函数。
返回值
(T[]): 一个新数组，仅包含原始数组中基于 mapper 函数返回值的唯一元素。
示例
uniqBy([1.2, 1.5, 2.1, 3.2, 5.7, 5.3, 7.19], Math.floor);
// [1.2, 2.1, 3.3, 5.7, 7.19]