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<!--info-header-start--><h1>LastIndexOf </h1><blockquote><p>by jiangshan <a href="https://github.com/jiangshanmeta" target="_blank">@jiangshanmeta</a></p></blockquote><p><a href="https://tsch.js.org/5317/play" target="_blank"></a> &nbsp;&nbsp;&nbsp;<a href="./README.zh-CN.md" target="_blank"></a> </p><!--info-header-end-->

Implement the type version of Array.lastIndexOf, LastIndexOf<T, U> takes an Array T, any U and returns the index of the last U in Array T

For example:

typescript
type Res1 = LastIndexOf<[1, 2, 3, 2, 1], 2> // 3
type Res2 = LastIndexOf<[0, 0, 0], 2> // -1
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