pagination js

let page = 1;

const fetch1 = fetch('https://api.themoviedb.org/3/movie/now_playing?api_key='+key+'&language='+lang+'&page='+page).then(resp=> resp.json())

const fetch2 = fetch('https://api.themoviedb.org/3/genre/movie/list?api_key='+key+'&language='+lang).then(resp=>resp.json())

//multifetch request
const allData = Promise.all([fetch1,fetch2])

allData.then(data=>{
    let genres = data[1].genres
    let movies = data[0].results
    let currentPage = data[0].page;
    let totalPages = data[0].total_pages
    console.log(currentPage)
    console.log(totalPages)


    //map for taking all genre_ids to resolve genre_names
    for (let movie of movies) {
        movie.genres = genres.filter((item) => ((movie.genre_ids.indexOf(item.id) >= 0)));
        movie.genre_names = movie.genres.map(item => item.name);
    }
    //getting all data
    getCardFilm(movies);


})
// const btnAtras = document.getElementById('btnAtras')
// const btnAdelante = document.getElementById('btnAdelante')