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<!--info-header-start--><h1>Capitalize </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/110/play" target="_blank"></a> &nbsp;&nbsp;&nbsp;<a href="./README.zh-CN.md" target="_blank"></a> <a href="./README.ja.md" target="_blank"></a> <a href="./README.ko.md" target="_blank"></a> </p><!--info-header-end-->

Implement Capitalize<T> which converts the first letter of a string to uppercase and leave the rest as-is.

For example

ts
type capitalized = Capitalize<'hello world'> // expected to be 'Hello world'
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