A pure function is a function that has no side effects and always returns the same output for the same input.
This can be achieved with the pure function:
import { pure } from 'minifunc';
const add = pure((a: number, b: number) => a + b);
add(1, 2); // 3, generated here
add(1, 2); // 3, taken from cache
[!NOTE] The function will not be actually executed until you call it for the first time.