从2个数组中查找不匹配的对象
const arr1 = [
{id: "145", firstname: "dave", lastname: "jones"},
{id: "135", firstname: "mike",lastname: "williams"},
{id: "148", firstname: "bob",lastname: "michaels"}
]
const arr2 = [
{id: "146", firstname: "dave", lastname: "jones"},
{id: "135", firstname: "mike", lastname: "williams"},
{id: "148", firstname: "bob", lastname: "michaels"}
],
newArr1 = arr1.filter(x => !arr2.some(y => y.id === x.id)),
newArr2 = arr2.filter(x => !arr1.some(y => y.id === x.id));
console.log(newArr1)// [{id: '145', firstname: 'dave', lastname: 'jones'}]
console.log(newArr2)// [{id: '146', firstname: 'dave', lastname: 'jones'}]
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