text: // You should implement your task here.
  
  module.exports = function towelSort(matrix) {
  
      if (matrix === undefined || matrix.length < 1) return [];
  
      let array = [];
  
      for (let i = 0; i < matrix.length; i++) {
          if (i % 2 !== 0) {
              matrix[i].reverse();
          }
  
          for (let j = 0; j < matrix[i].length; j++) {
              array.push(matrix[i][j]);
          }
      }
  
      return array;
  };
  