如何使用Javascript对对象中的年份进行分组？

const data = [
  { name: 'John', year: 1990 },
  { name: 'Mike', year: 1992 },
  { name: 'Alice', year: 1990 },
  { name: 'Jane', year: 1992 },
  { name: 'Tom', year: 1995 }
];

const groups = {};

data.forEach(obj => {
  const year = obj.year;
  
  if (!groups[year]) {
    groups[year] = [];
  }
  
  groups[year].push(obj);
});

console.log(groups);

{
  1990: [
    { name: 'John', year: 1990 },
    { name: 'Alice', year: 1990 }
  ],
  1992: [
    { name: 'Mike', year: 1992 },
    { name: 'Jane', year: 1992 }
  ],
  1995: [
    { name: 'Tom', year: 1995 }
  ]
}