Cant retrieve the data from the Array by using method(passing) index as argument

Question

Can't get the Array item by using method() while passing index as argument it shows as undefined

export class DataService {
    public list = [
        { id: 11, name: 'Mr. Nice' },
        { id: 12, name: 'Narco' },
        { id: 13, name: 'Bombasto' },
        { id: 14, name: 'Celeritas' },
        { id: 15, name: 'Magneta' },
        { id: 16, name: 'RubberMan' },
        { id: 17, name: 'Dynama' },
        { id: 18, name: 'Dr IQ' },
        { id: 19, name: 'Magma' },
        { id: 20, name: 'Tornado' }
    ]
    getList() {
        return this.list;
    }


    update(num, updated) {
        let list = this.getList()
        console.log(typeof (num))
        console.log(this.list[num])
    }

Answer 1

Your array contains objects, but you want to search by id which is a property of those objects. You have to use filter :

console.log(this.list.find(el => el.id === id))