text: module.exports = function toReadable (number) {
      let one = ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine'];
      let tenth = ['eleven', 'twelve', 'thirteen', 'fourteen', 'fifteen', 'sixteen', 'seventeen', 'eighteen', 'nineteen'];
      let ten = ['ten', 'twenty', 'thirty', 'forty', 'fifty', 'sixty', 'seventy', 'eighty', 'ninety'];
      let arr = String(number).split('');
      let num = String(number).split('').slice(1);
  
    for (let i = 0; i < arr.length; i++) {
        if ((arr.length === 1) && (arr[i] === '0')) {
            return 'zero';
        } else if (arr.length === 1) { 
          return one[+(arr[i])-1];
        }  else if ((arr.length === 2) && ((10 < number) && (number < 20))) { 
          let array = arr.slice(1);
          return tenth[+(array[i])-1];
        } else if ((arr.length === 2) && (arr[1] === '0')) {
          return ten[+(arr[0])-1];
        } else if ((arr.length === 2) && ((arr[1] != '0') && (number > 20))) { 
          return ten[+(arr[0])-1] + ' ' + one[+(arr[i+1])-1];
        } else if ((arr.length === 3) && ((arr[1] === '0') && (arr[2] === '0'))) { 
          return one[+(arr[i])-1] + ' ' + 'hundred';
        } else if ((arr.length === 3) && ((arr[1] === '0') && (arr[2] === '0'))) { 
          return one[+(arr[i])-1] + ' ' + 'hundred';
        } else if (arr.length === 3) {       
          if ((arr[1] === '1') && (10 < +num.join('')) && (+num.join('') < 20)) { 
            let array = num.slice(1);
            return one[+(arr[i])-1] + ' ' + 'hundred' + ' ' + tenth[+(array[i])-1];
          } else if (arr[1] === '0')  { 
            let array = num.slice(1);
            return one[+(arr[i])-1] + ' ' + 'hundred' + ' ' + one[+(array[i])-1];
          } else if ((arr[1] != '0') && (arr[2] === '0')) {
            return one[+(arr[i])-1] + ' ' + 'hundred' + ' ' + ten[+(arr[1])-1];
          } else if ((arr[1] != '0') && (+num.join('') > 20)) {
           return one[+(arr[i])-1] + ' ' + 'hundred' + ' ' + ten[+(num[0])-1] + ' ' + one[+(num[i+1])-1];
        }
        } 
    }
  }