Question

How to find the last character that is repeated in a string with JavaScript

Answer 1

function get_last_character_repeated(s) { 
    var len = s.length;
    var ch_idx = -1;
            
    for (var i = 0; i < len; i++) { 
       for (var j = i + 1; j < len; j++) { 
            if (s[i] === s[j]) { 
                ch_idx = i;
                break;
            } 
        } 
    } 
    return ch_idx; 
}  
 
s = "abcdxypcbadom"; 
         
i = get_last_character_repeated(s); 
        
if (i === -1) {
    document.write("Not found"); 
}
else {
     document.write(s[i]);
}


     
/*
run:
 
d
          
*/
  

 

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