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Jun 28th, 2019
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  1. function solveTheRiddle(arrayInput) {
  2.     const questToSolve = arrayInput.shift().split(' ');
  3.     let currentCommands = arrayInput.shift().split(' ');
  4.  
  5.  
  6.     while (currentCommands[0] !== 'Stop') {
  7.  
  8.         if (currentCommands[0] === 'Delete') {
  9.             const index = +currentCommands[1] + 1;
  10.             if (index >= 0 && index < questToSolve.length)  {
  11.                 questToSolve.splice(index, 1);
  12.             }
  13.         } else if (currentCommands[0] === 'Swap') {
  14.             let word1 = currentCommands[1];
  15.             let word2 = currentCommands[2];
  16.             if (questToSolve.indexOf(word1) !== -1 && questToSolve.indexOf(word2) !== -1) {
  17.                 const word1Index = questToSolve.indexOf(word1);
  18.                 const word2Index = questToSolve.indexOf(word2);
  19.                 const savedFirst = questToSolve[word1Index];
  20.                 questToSolve[word1Index] = word2;
  21.                 questToSolve[word2Index] = savedFirst;
  22.             }
  23.         } else if (currentCommands[0] === 'Put') {
  24.             let word = currentCommands[1];
  25.             let index = +currentCommands[2] - 1;
  26.  
  27.             if (index >= 0 && index <= questToSolve.length) {
  28.                 questToSolve.splice(index, 0, word);
  29.             }
  30.  
  31.  
  32.         } else if (currentCommands[0] === 'Replace') {
  33.             let word1 = currentCommands[1];
  34.             let word2 = currentCommands[2];
  35.             let word2Index = questToSolve.indexOf(word2);
  36.             if (word2Index !== -1) {
  37.                 questToSolve[word2Index] = word1;
  38.             }
  39.         } else if (currentCommands[0] === 'Sort') {
  40.             questToSolve.sort((a, b) => b.localeCompare(a))
  41.         }
  42.         currentCommands = arrayInput.shift().split(' ');
  43.     }
  44.     console.log(questToSolve.join(' '));
  45. }
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