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questions/00545-hard-printf/README.ja.md

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<!--info-header-start--><h1>printf </h1><blockquote><p>by null <a href="https://github.com/Bestmain-YS" target="_blank">@Bestmain-YS</a></p></blockquote><p><a href="https://tsch.js.org/545/play/ja" target="_blank"></a> &nbsp;&nbsp;&nbsp;<a href="./README.md" target="_blank"></a> </p><!--info-header-end-->

汎用的なFormat<T extends string>を実装します。

例えば、

ts
type FormatCase1 = Format<'%sabc'>; // FormatCase1 : string => string
type FormatCase2 = Format<'%s%dabc'>; // FormatCase2 : string => number => string
type FormatCase3 = Format<'sdabc'>; // FormatCase3 :  string
type FormatCase4 = Format<'sd%abc'>; // FormatCase4 :  string
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