Movies

function solve(input) {
               let movies=[];
               input
               .forEach((line) =>{
                   let tokens = line.split(' ');
                   if (line.includes('addMovie')) {
                       let movieName = tokens.slice(1).join(' ');
                       movies.push({name: movieName});
                   } else if (line.includes('directedBy')){
                  let index = tokens.indexOf('directedBy');
                  let movieName=tokens.slice(0, index).join(' ');
                  let movieDirector=tokens.slice(index+1).join(' ');
                  let movie=movies.find(m=>m.name===movieName);
                  if (movie) {
                    movie.director=movieDirector;
                  }

                   } else if (line.includes('onDate')) {
                       let index = tokens.indexOf('onDate');
                       let movieName=tokens.slice(0, index).join(' ');
                       let movieDate=tokens.slice(index+1).join(' ');
                       let movie=movies.find(m=>m.name===movieName)
                       if (movie) {
                           movie.date=movieDate;
                       }
                   }
               });
               for (let m of movies) {
                   let keys=Object.keys(m);
                   if (keys.length===3) {
                       console.log(JSON.stringify(m));
                   }
               }
            }