text: // Knuth shuffle
  // https://github.com/Daplie/knuth-shuffle
  
  export default function (array) {
  
      var currentIndex = array.length, temporaryValue, randomIndex;
  
      // While there remain elements to shuffle...
      while (0 !== currentIndex) {
  
          // Pick a remaining element...
          randomIndex = Math.floor(Math.random() * currentIndex);
          currentIndex -= 1;
  
          // And swap it with the current element.
          temporaryValue = array[currentIndex];
          array[currentIndex] = array[randomIndex];
          array[randomIndex] = temporaryValue;
      }
  
      return array;
  
  }