Tell us what’s happening:
Your code so far
function rot13(str) { // LBH QVQ VG!
let ab=['A','B','C','D','E','F','G','H','I','J','K','L','M'];let no=['N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];
let ar = str.split('');
for(let i=0;i<ar.length;i++){if(ab.indexOf(ar[i])!==-1){let x=ab.indexOf(ar[i]);ar.splice(ar.indexOf(ar[i]),1,no[x]);}
else if(no.indexOf(ar[i])!==-1){let y=no.indexOf(ar[i]);
ar.splice(ar.indexOf(ar[i]),1,ab[y])
}
}
return ar.join('');
}
// Change the inputs below to test
rot13("SERR PBQR PNZC");
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.
Link to the challenge: