Tell us what’s happening:
my solution succeeds at nearly all checkmarks, but fails the undefined check.
As far as I can see from other forums and descriptions, mine should be returning undefined…??
Your code so far
function fearNotLetter(str) {
let letters = 'abcdefghijklmnoprstuvwxyz';
let start = letters.indexOf(str[0]);
for (let i = 0; i < str.length; i++) {
if (str[i] != letters[i+start]){
return letters[i+start];
}
}
}
console.log(fearNotLetter("abcdefghijklmnoprstuvwxyz"));
Your browser information:
User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36
.
Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/intermediate-algorithm-scripting/missing-letters