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TS的元组只能包含固定数量的成员 #277

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ChangYanwei opened this issue Sep 10, 2022 · 0 comments

ChangYanwei commented Sep 10, 2022

在TypeScript 类型系统-概览-元组类型章节，文章写到“元组可以包含任意数量的成员”，实际上元组只能包含固定数量的成员。例如：

const a:[string,number] = ["1",2,3];
// error：不能将类型“[string, number, number]”分配给类型“[string, number]”。源具有 3 个元素，但目标仅允许 2 个。

ChangYanwei changed the title ~~TS的远足只能包含固定数量的成员~~ TS的元组只能包含固定数量的成员

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