js将(s:秒)转为(m:分钟)

var sToM = function(arg){
        var output ;
        if(arg instanceof Array){
            output = new Array();
            for(var i = 0 ; i < arg.length ; i++){
                output.push(Math.round((parseInt(arg[i]/60) + arg[i]% 60 / 60 ) *100) /100 );
            }
        }else {
            output = Math.round((parseInt(arg/ 60) +arg % 60 /60 ) *100 ) /100 ;
        }
        return output;
    };

  var testArr = [80916, 156733, 97188, 194326, 279018];
  sToM(testArr );