I have an id and with that i want to map through an array and get a new array where only the containing id items will be there.
So,the array is like :
var list = [
{
genre_ids: [28, 12, 878],
genres: undefined,
id: 634649,
image: "http://image.tmdb.org/t/p/w342//1g0dhYtq4irTY1GPXvft6k4YLjm.jpg",
popularity: 12971.91,
released: "2021-12-15",
title: "Spider-Man: No Way Home",
vote_average: 8.5,
vote_count: 2295
},
{
genre_ids: [878, 28, 12],
genres: undefined,
id: 580489,
image: "http://image.tmdb.org/t/p/w342//rjkmN1dniUHVYAtwuV3Tji7FsDO.jpg",
popularity: 6303.047,
released: "2021-09-30"
title: "Venom: Let There Be Carnage"
vote_average: 7.2
vote_count: 5012
},
{
genre_ids: [16, 35, 10751, 14],
genres: undefined,
id: 568124,
image: "http://image.tmdb.org/t/p/w342//4j0PNHkMr5ax3IA8tjtxcmPU3QT.jpg",
popularity: 3157.171,
released: "2021-11-24",
title: "Encanto",
vote_average: 7.6,
vote_count: 541
}
]Now, suppose my id is 28. I want only the items containing id 28. So, my output should be like this:
var list = [
{
genre_ids: [28, 12, 878],
genres: undefined,
id: 634649,
image: "http://image.tmdb.org/t/p/w342//1g0dhYtq4irTY1GPXvft6k4YLjm.jpg",
popularity: 12971.91,
released: "2021-12-15",
title: "Spider-Man: No Way Home",
vote_average: 8.5,
vote_count: 2295
},
{
genre_ids: [878, 28, 12],
genres: undefined,
id: 580489,
image: "http://image.tmdb.org/t/p/w342//rjkmN1dniUHVYAtwuV3Tji7FsDO.jpg",
popularity: 6303.047,
released: "2021-09-30"
title: "Venom: Let There Be Carnage"
vote_average: 7.2
vote_count: 5012
},
]Here's what i have tried:
var newGenre = list.map((item)=>{
return item.genre_ids.map((gId)=>{
gId === 28
})
})You can do it by using filter and includes method on array, like this:
let list = [{ genre_ids: [28, 12, 878], genres: undefined, id: 634649, image: "http://image.tmdb.org/t/p/w342//1g0dhYtq4irTY1GPXvft6k4YLjm.jpg", popularity: 12971.91, released: "2021-12-15", title: "Spider-Man: No Way Home", vote_average: 8.5, vote_count: 2295 }, { genre_ids: [878, 28, 12], genres: undefined, id: 580489, image: "http://image.tmdb.org/t/p/w342//rjkmN1dniUHVYAtwuV3Tji7FsDO.jpg", popularity: 6303.047, released: "2021-09-30", title: "Venom: Let There Be Carnage", vote_average: 7.2, vote_count: 5012, }, { genre_ids: [16, 35, 10751, 14], genres: undefined, id: 568124, image: "http://image.tmdb.org/t/p/w342//4j0PNHkMr5ax3IA8tjtxcmPU3QT.jpg", popularity: 3157.171, released: "2021-11-24", title: "Encanto", vote_average: 7.6, vote_count: 541 } ];
const targetId = 28;
let result = list.filter(item => item.genre_ids.includes(targetId));
console.log(result)I suppose that you have a variable called ID
Using filter to return new array after filtering
The condition is genre_ids include ID
const ID = 28
const filteredList = list.filter(item => item.genre_ids.includes(ID))