INNER CODE UNIT · JavaScript

unique3

kingschan1204/istock · src/main/resources/mapreduce/5years_dy/dy5years_reduce.js:12

    function unique3(arr){
        arr.sort();
        var hash=[arr[0]];
        for (var i = 1; i < arr.length; i++) {
            if(arr[i]!=hash[hash.length-1]){
                hash.push(arr[i]);
            }
        }
        return hash;
    }

    var arrays=unique3(array);
    return {percent:(total/arrays.length).toFixed(2),years:years,total:total,key:arrays.length};
}

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