场景： this.menus = [{id:1},{id:2},{id:3}];row.id = 3
for (let i
in this.menus
) {
if (this.menus
[i
].id
=== row
.id
) {
delete this.menus
[i
].id
}
}
delete 返回boolean类型 console.log(delete this.menus[i].id) // true console.log(this.menus) // [{id:1},{id:2},null];
