const a1 = [{ id: 1 }, { id: 2 }, { id: 3 }, { id: 4 }];
const a2 = [{ id: 1 }, { id: 2 }];
const newArr = a1.filter(v => !a2.some(a => a.id === v.id));
console.log(‘newArr: ‘, newArr);
// newArr: [{ id: 3 }, { id: 4 }]
原文：https://www.cnblogs.com/zoeeying/p/11512003.html