Replace occurrence in string literal type in TypeScript

Today we discuss Replace

We need to remove one occurrence in the string and place instead the different value

Let's do that 🚀

Replace occurrence

Let's first find occurrence within a string and replace it with the different value:

We don't know start and end but know for sure that From is in the string S.

That's not the perfect solution though: https://tsplay.dev/WGnp9m

So when the input string S is empty, we want to have it as a result. Let's replace never with S:

Still we missed the case where we try to replace empty From: https://tsplay.dev/WYJabw

Here we don't need to do anything:

The solution is available here: https://tsplay.dev/wgrVMW

Have a wonderful evening ☕️