仅从JavaScript中的对象数组中获取唯一数据

const arr = [{id: 1, name: 'Alice'}, {id: 2, name: 'Bob'}, {id: 1, name: 'Alice'}];
const uniqueArr = Array.from(new Set(arr.map(JSON.stringify)), JSON.parse);
console.log(uniqueArr);

const arr = [{id: 1, name: 'Alice'}, {id: 2, name: 'Bob'}, {id: 1, name: 'Alice'}];
const uniqueArr = Object.values(arr.reduce((acc, obj) => {
  acc[obj.id] = obj;
  return acc;
}, {}));
console.log(uniqueArr);

const arr = [{id: 1, name: 'Alice'}, {id: 2, name: 'Bob'}, {id: 1, name: 'Alice'}];
const uniqueArr = arr.filter((obj, index, self) => {
  return self.findIndex(o => o.id === obj.id) === index;
});
console.log(uniqueArr);