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