👉 Harts, in the context of mathematics and computer science, are a type of recursive function that returns its own value. This is often used to simplify algorithms or expressions by repeatedly applying the same function to itself. For example, consider the recursive function:
```
function f(n) {
if (n == 1) return 1;
else return n
f(n - 1);
}
```
This function can be simplified using a harts-like approach:
```
function f
harts