(Medium) Promises + Sync Code = Disaster - Correct Usage of Sync and Async

CorrectUsageSyncAsync.js

const mapDetailedMatches = function( soccerMatches, soccerResults ){
  return soccerMatches.map(function( match ) {
    return {
      name: match.name,
      score: findScoreForMatch( match, soccerResults )
    };
  });
};
const printDetailedMatchesToScreen = function( detailedMatches ) {
  detailedMatches.forEach(function( detailedMatch ) {
    const name = detailedMatch.name;
    const score = detailedMatch.score;
    console.log( `${name} with the score ${score}` );
  });
};

let soccerMatches;

fetchSoccerMatchesFromResource( ... )
.then(function( _soccerMatches ) {
  soccerMatches = _soccerMatches;
  return fetchSoccerResultsFromResource( ... );
})
.then(function( soccerResults ) {
  const detailedMatches = mapDetailedMatches(
    soccerMatches,
    soccerResults
  );
  printDetailedMatchesToScreen( detailedMatches );
})
.catch(function( err ) {
  console.error( 'Failed to print the score', err );
});