text: module.exports.randomRange = function (min, max) {
      min = Math.ceil(min);
      max = Math.floor(max);
      return Math.floor(Math.random() * (max - min + 1)) + min;
  };
  
  module.exports.takeRandomEleInArray = function (arr, n) {
      let len = arr.length;
      let result = new Array(n);
      let taken = new Array(len);
      if (n > len) throw new RangeError("getRandom: more elements taken than available");
      while (n--) {
          const x = Math.floor(Math.random() * len);
          result[n] = arr[x in taken ? taken[x] : x];
          taken[x] = --len in taken ? taken[len] : len;
      }
      return result;
  };