Please explain better on using the recursion function

Question

Recursion function

Answer 1

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.tutorialspoint.com/cprogramming/c_recursion&ved=2ahUKEwjM0ObE6MnjAhWoH7cAHThJBT8QFjANegQIDxAy&usg=AOvVaw2OJpkU52_7YV8wzwQP2oGg..

Check thz for more information

Answer 2

A recursive function is simply a function that calls itself, and typically performs some other task before calling itself again. A very simple example might be:

function subtractToOne(num){
console.log(num);
num--;
if(num >= 1){subtractToOne(num));}
}

subtractToOne(3);

The output will be:
3
2
1

The idea is that if the function is called with an argument greater than or equal to 1, it will call itself again with the previous argument reduced by 1 and keep calling itself until its argument is less than 1.

I hope this helps!

Answer 3

Sometines it could be an alternative to using a loop.

Answer 4

So what does it do please

Answer 5

Thanks to you all, they helped me alot