Basic JavaScript - Replace Loops using Recursion

JavaScript
1

Tell us what’s happening:
Describe your issue in detail here.
please i need help to understand how this recursion works

  **Your code so far**

function sum(arr, n) {
// Only change code below this line
if (n <= 0) {
return 1;
} else {
return sum(arr, n - 1) * arr[n - 1];
}
// Only change code above this line
}


  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.84 Safari/537.36 OPR/85.0.4341.75

Challenge: Basic JavaScript - Replace Loops using Recursion

Link to the challenge:

2

can you try first to tell us what you understand?

3

I understand recursion is a concept whereby a code calls itself … but i honestly don 't understand how it works

4

try the Watch a Video button, it has a good explanation

5

okay i will , thanks alot

6

Hi,

Do you struggle to comprehend the exercice that was asked ? Was my issue too, so if i can help you clarify as much as i can, it will be with a great pleasure

7

okay, thanks alot . Aesir, i just watched the video explanation i am going to try the challenge once more, if it don’t get it still i will let you know .

8

function sum(arr, n) {
// Only change code below this line
if (n <= 0) {
return 0;
} else{
return sum (arr, n - 1) + arr[n - 1];
}
// Only change code above this line
}
i got the answer but please can you explain to me what happened in the code

9

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