Please help. I can’t find how to fix this error as Let’s Play (playBtn) is not working,
error in console
Uncaught (in promise) TypeError: Cannot read properties of undefined (reading ‘length’)
** at getRandomMovie (helpers.js:76:59)**
** at HTMLButtonElement.showRandomMovie (script.js:65:23)**
I haven’t changed anything in helpers.js
I appreciate your help!
```
const tmdbKey = ".....6768 ";
const tmdbBaseUrl = "https://api.themoviedb.org/3";
const playBtn = document.getElementById("playBtn");
const getGenres = async () => {
const genreRequestEndpoint = "/genre/movie/list";
const requestParams = `?api_key=${tmdbKey}`;
const urlToFetch = `${tmdbBaseUrl}${genreRequestEndpoint}${requestParams}`;
try {
const response = await fetch(urlToFetch);
if (response.ok) {
const jsonResponse = await response.json();
const genres = jsonResponse.genres;
return genres;
}
} catch (error) {
console.log("error");
}
};
const getMovies = async () => {
const selectedGenre = getSelectedGenre();
const discoverMovieEndpoint = "/discover/movie";
const requestPArams = `?api_key=${tmdbKey}&with_genres=selectedGenre`;
try {
const response = await fetch(urlToFetch);
if (response.ok) {
const jsonResponse = await response.json();
const movies = jsonResponse.results;
return movies;
}
} catch (error) {
console.log(error);
}
};
const getMovieInfo = async (movie) => {
const movieId = movie.id;
const movieEndpoint = `/movie/{movieId}`;
const requestParams = `?api_key=${tmdbKey}`;
const urlToFetch = `${tmdbBaseUrl}${movieEndpoint}${requestParams}`;
try {
const response = await fetch(urlToFetch);
if (response.ok) {
const jsonResponse = await response.json();
const movieInfo = jsonResponse;
return movieInfo;
}
} catch (error) {
console.log(error);
}
};
// Gets a list of movies and ultimately displays the info of a random movie from the list
const showRandomMovie = async () => {
const movieInfo = document.getElementById("movieInfo");
if (movieInfo.childNodes.length > 0) {
clearCurrentMovie();
}
const movies = await getMovies();
const randomMovie = getRandomMovie(movies);
const info = getMovieInfo(randomMovie);
displayMovie(info);
};
getGenres().then(populateGenreDropdown);
playBtn.onclick = showRandomMovie;
```
