Movies - Object and Classes - Exs

function solve(input){
   let movies = [];
   for(let command of input){
       let tokens = command.split(' ');

       if(tokens.includes('addMovie')){
           let filmName = tokens.slice(1).join(' ');
           movies.push({name: filmName});

       }

       else if(tokens.includes('directedBy')){
           let index = tokens.indexOf('directedBy');
           let filmName = tokens.slice(0,index).join(' ');
           let film = movies.find((o) => o.name === filmName);

           if(film){
              let directorName = tokens.slice(index + 1).join(' ');
              film.director = directorName;
           }
       }

       else if(tokens.includes('onDate')){
           let indexDate = tokens.indexOf('onDate');
           let filmName = tokens.slice(0,indexDate).join(' ');
           let film = movies.find((o) => o.name === filmName);

           if(film){
               let date = tokens.slice(indexDate + 1).join(' ');
               film.date = date;
           }
       }
   }
   let filteredMovie = movies.filter((movie) => Object.keys(movie).length === 3);
   for(let film of filteredMovie){
       console.log(JSON.stringify(film))
   }
}
solve(
    [
        'addMovie Fast and Furious',
        'addMovie Godfather',
        'Inception directedBy Christopher Nolan',
        'Godfather directedBy Francis Ford Coppola',
        'Godfather onDate 29.07.2018',
        'Fast and Furious onDate 30.07.2018',
        'Batman onDate 01.08.2018',
        'Fast and Furious'
    ]
)