<pre class="shiki github-dark shaku"><code>type IsAny&lt;T&gt; = 1 extends (2 &amp; T) ? true : false; // 2 &amp; T can be 2 or any when T is any, since any is infectious</code></pre>

Simple solution

Implement IsAny<T> to check against any. type A = IsAny<string> // falsetype B = IsAny<any> // truetype C = IsAny<unknown> // falsetype D = IsAny<neve…