When I went to get a hint (having forgotten I need to return str), I was taken here:
guide (dot) freecodecamp (dot) org/certifications/javascript-algorithms-and-data-structures/basic-javascript/use-the-parseint-function/
There’s nothing there, but it should be:
github (dot) com /freeCodeCamp/freeCodeCamp/blob/master/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/use-the-parseint-function.english.md