map an array of objects to a dictionary {js}

• dev.to

let data = [
  {id: 1, country: 'Germany', population: 83623528},
  {id: 2, country: 'Austria', population: 8975552},
  {id: 3, country: 'Switzerland', population: 8616571}
];

// First Try
let dictionary = Object.assign({}, ...data.map((x) => ({[x.id]: x.country})));

// Second Try
let dictionary = Object.fromEntries(data.map(x => [x.id, x.country]));

result:

{1: "Germany", 2: "Austria", 3: "Switzerland"}