highestscoringword

const high = (words) => {
  const alphabet = "abcdefghijklmnopqrstuvwxyz";

  let wordScores = words.split(" ").reduce((accumulator, item, index, array) => {
    let total = 0;
    
    item.split("").map(letter => {
      total += alphabet.indexOf(letter)
    });
    
    accumulator.push(total);
    
    return accumulator;
  }, []);
  
  return words.split(" ")[wordScores.indexOf(Math.max(...wordScores))];
}