Please can someone explain recursion definition/explainer to me? Also, what do the arrows in the example code do? Further, I don’t understand why it says it will continue until n === 1 yet it comes to 6.

# Recursion Replacement definition

Please can someone explain recursion definition/explainer to me? Also, what do the arrows in the example code do? Further, I don’t understand why it says it will continue until n === 1 yet it comes to 6.

function x(number) {

if (number === 1) {

return 1;

} else {

return number * x(number - 1)

} }

Let’s analyse

Let’s say number is 5

This function will basically multiply number by x(number - 1)

That is 5 * x(5-1)

That is 5 * x(4). -------(1)

But what is x(4)?

It is 4 * x(4-1)

That is 4 * x(3) ------------(2)

But what is x(3)?

It is 3 * x(3-1)

That is 3 * x(2). ------------(3)

But what is x(2)?

It is 2 * x(2-1)

That is 2 * x(1) ------------(4)

the function stops at 1 because of

if (number === 1)

And returns 1

That is 2 * 1-------------(5)

So from 1 2 3 4 5

The end result is

5 * 2 * 3 * 2 * 1

Which is equals to 120

This explaination might be difficult to understand. Sorry for that. Hope this helps

So is the point to print 120 or

5

4

3

2

1?

5 * 4 * 3 * 2 * 1 means

5×4×3×2×1 = 120