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@isaklafleur
Created October 9, 2017 21:02
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An example of Recursion. A factorial function is defined as: factorial of n is n times the factorial of n - 1, except for factorial of 0 which is 1. Therefore, we can write this as:
function factorial(number) {
if (number === 0) { return 1; }
return number * factorial(number - 1);
}
// factorial(0) -> 1
// factorial(1) -> 1
// factorial(2) -> 2
// factorial(3) -> 6
// factorial(4) -> 24
// factorial(5) -> 120
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