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<!--info-header-start--><h1>去除两端空白字符 </h1><blockquote><p>by Anthony Fu <a href="https://github.com/antfu" target="_blank">@antfu</a></p></blockquote><p><a href="https://tsch.js.org/108/play/zh-CN" target="_blank"></a> &nbsp;&nbsp;&nbsp;<a href="./README.md" target="_blank"></a> <a href="./README.ja.md" target="_blank"></a> <a href="./README.ko.md" target="_blank"></a> </p><!--info-header-end-->

实现Trim<T>，它接受一个明确的字符串类型，并返回一个新字符串，其中两端的空白符都已被删除。

例如

ts
type trimmed = Trim<'  Hello World  '> // expected to be 'Hello World'
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<a href="../../README.zh-CN.md" target="_blank"></a> <a href="https://tsch.js.org/108/answer/zh-CN" target="_blank"></a> <a href="https://tsch.js.org/108/solutions" target="_blank"></a> <hr><h3>相关挑战</h3><a href="https://github.com/type-challenges/type-challenges/blob/main/questions/00106-medium-trimleft/README.zh-CN.md" target="_blank"></a> <a href="https://github.com/type-challenges/type-challenges/blob/main/questions/04803-medium-trim-right/README.zh-CN.md" target="_blank"></a> <!--info-footer-end-->