What is wrong with my code? It runs in playground but not here

function rot13(str) {
const abcKey = [

const index = abcKey.indexOf[0] + 13;

const abcKeys = [

const index2 = abcKeys.indexOf[0] - 13;

return index2;

rot13(“SERR PBQR PNZC”);

To display your code in here you need to wrap it in triple back ticks. On a line by itself type three back ticks. Then on the first line below the three back ticks paste in your code. Then below your code on a new line type three more back ticks. The back tick on my keyboard is in the upper left just above the Tab key and below the Esc key.

Also, it would help if you gave us a link to the FCC challenge.

UPDATE: I believe this is for the Ceasars Cipher cert project?

1 Like

I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.

See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (').

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