text: 
  exports.min = function min (array) {
    if(!array || array.length === 0){
      return 0;
    }
    return Math.min(...array);
  }
  
  
  
  exports.max = function max (array) {
    if(!array || array.length === 0){
      return 0;
    }
    return Math.max(...array);
  }
  
  exports.avg = function avg (array) {
    if(!array || array.length === 0){
      return 0;
    }
   return array.reduce((sum, current) => sum + current) / array.length
  }
  