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精读《Promise.all, Replace, Type Lookup...》 #425

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ascoders opened this issue Jun 18, 2022 · 1 comment
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精读《Promise.all, Replace, Type Lookup...》 #425

ascoders opened this issue Jun 18, 2022 · 1 comment

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@ascoders
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ascoders commented Jun 18, 2022 •
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精读 type-challenges Medium 9~16 题。

精读《Promise.all, Replace, Type Lookup...》
@ascoders ascoders changed the title 精读《Pop, Replace, Type Lookup...》 精读《Promise.all, Replace, Type Lookup...》 Jun 18, 2022
@waitingsong
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waitingsong commented Jun 20, 2022 •
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不知道是 bug 还是 feature，TS 的 { [K in keyof T]: T[K] } 能同时兼容元组、数组与对象类型。

keyof T 的结果是 string | number | symbol，T[number] 自然就兼容数组了～

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@waitingsong @ascoders