// DESCRIPTION:
// Your task is to sort a given string. Each word in the string will contain a single number. This number is the position the word should have in the result.

// Note: Numbers can be from 1 to 9. So 1 will be the first word (not 0).

// If the input string is empty, return an empty string. The words in the input String will only contain valid consecutive numbers.

// Examples
// "is2 Thi1s T4est 3a"  -->  "Thi1s is2 3a T4est"
// "4of Fo1r pe6ople g3ood th5e the2"  -->  "Fo1r the2 g3ood 4of th5e pe6ople"
// ""  -->  ""

// solutions

// The best 

function order(words) {
  return words.split(' ').sort((wordA, wordB) => wordA.match(/\d+/) > wordB.match(/\d+/)).join(' ')
}

function order(words){
  
  return words.split(' ').sort(function(a, b){
      return a.match(/\d/) - b.match(/\d/);
   }).join(' ');
}   


function order(words){
  var array = words.split(' ');
  var sortedArray = [];
  for(i = 0; i <= array.length; i++) {
    for(j = 0; j < array.length; j++) {
      if(array[j].indexOf(i) >= 0) {
        sortedArray.push(array[j]);
      }
    }
  }
  return sortedArray.join(' ');
}



function order(words){
  // ...
  return words && words.split(' ')
    .map(word => word.match(/\d/) + word)
    .sort()
    .map(word => word.slice(1))
    .join(' ');
}