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How to get the repeating characters of a string in JavaScript

1 Answer

0 votes
function get_repeating_chars(s) { 
    var len = s.length;
    var tmp = "";
    for (var i = 0; i < len; i++) { 
       for (var j = i + 1; j < len; j++) { 
           if (s[i] === s[j]) {
               if (tmp.indexOf(s[i]) === -1) {
                   tmp += s[i];
    return tmp; 
s = "abcdeffghijgklmbbbbxzx"; 
tmp = get_repeating_chars(s);  


answered Jan 12 by avibootz