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<!--info-header-start--><h1>If </h1><blockquote><p>by Pavel Glushkov <a href="https://github.com/pashutk" target="_blank">@pashutk</a></p></blockquote><p><a href="https://tsch.js.org/268/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 the util type If<C, T, F> which accepts condition C, a truthy value T, and a falsy value F. C is expected to be either true or false while T and F can be any type.

For example:

ts
type A = If<true, 'a', 'b'>  // expected to be 'a'
type B = If<false, 'a', 'b'> // expected to be 'b'
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