Learnable Technical Test Attempt

Learnable

function nth_most_rate_signature(list, n) {
    list.sort();
            
    let min_count = n+1, res = -1;
    let curr_count = 1;
            
    for (let i = 1; i < n; i++) {
        // eslint-disable-next-line eqeqeq
        if (list[i] == list[i - 1])
            curr_count++;
        else {
            if (curr_count < min_count) {
                min_count = curr_count;
                res = list[i - 1];
            }
                
            curr_count = 1;
        }
    }
        
        // If last element is least frequent
        if (curr_count < min_count)
        {
            min_count = curr_count;
            res = list[n - 1];
        }
        
        return res;
}

let arr = [1, 3, 2, 1, 2, 2, 3, 1, 3, 3, 2, 1, 1];
let n = arr.length;

console.log(nth_most_rate_signature(arr, n));