This is alternative to use of "Exclud":
<pre class="shiki github-dark shaku"><code>// your code here, please don't use Omit&lt;T, K&gt; in your codetype MyOmit&lt;T, K extends keyof any&gt; = { [key in keyof T as key extends K ? never : key] : T[key]}</code></pre>
Here is documentation about remapping:
<a href="https://www.typescriptlang.org/docs/handbook/2/mapped-types.html#key-remapping-via-as">https://www.typescriptlang.org/docs/handbook/2/mapped-types.html#key-remapping-via-as</a>

Alternative approach, the use of  key Remapping via "as".

Omit<T, K> returns a new type by picking the properties in T but not in K. Please implement MyOmit<T, K> by yourself. type Foo = { a: string b: number…