[[{ id: 26, type: "Source", name: "Email" }], [{ id: 27, type: "Source", name: "Id" }, { id: 29, type: "Divider", name: "+" }, { id: 30, type: "Source", name: "SupplierId" }], [{ id: 28, type: "Source", name: "CommunityId" }]如何将上面的 object 数组转换为 arrays 数组，像这样，其中“名称”被挑出？
[["Email"],["Id","+", "SupplierId"],["CommunityId"]]我已经尝试像这样 map 它：
this.exportColumns = columns.flatMap(obj => obj.sourceColumn).map(obj => obj?.name);但我得到了这个结果：
[ "Email", "Id", "+", "SupplierId", "CommunityId" ]回答1
在 arrays 的第一层内使用第二个 map
data.map(item => item.map(i => i.name));