04. Movies Objects and Classes - Exercise Last decision

function movies(commands) {
    let movies = {};
    let result = [];
    for (let i = 0; i < commands.length; i++) {
        let operation = String(commands[i]);
        if (operation.includes('addMovie')) {
            let name = operation.substr(9)
            if (!movies.hasOwnProperty(name)) {
                movies[name] = {};
                movies[name].name = name;
            }
        } else if (operation.includes(' directedBy ')) {
            let [name, director] = operation.split(' directedBy ');
            if (movies.hasOwnProperty(name)) {
                    movies[name].director = director;
            }
        } else if (operation.includes(' onDate ')) {
            let [name, date] = operation.split(' onDate ');
            if (movies.hasOwnProperty(name)) {
                    movies[name].date = date;
            }
        }
    }
    for (name of Object.keys(movies)) {
        if (movies[name].director !== undefined && movies[name].date !== undefined) {
            result.push(movies[name])
        }
    }
    result.forEach(film => console.log(JSON.stringify(film)));
}