数据格式转换

index.ts

interface Room {
    name: string;
    floor: string;
    unit: string;
    buildId: string;
}
interface Build {
    buildId: string;
    unit: Array<Unit>;
}
interface Unit {
    id: string;
    floor: Array<Floor>
}
interface Floor {
    id: string;
    room: Array<Room>
}

let data: Array<Room> = [
    {
        "name": "101",//房间号，表示1楼1号房
        "floor": "1-1",//楼层号，表示1单元1楼
        "unit": "1",//单元号，表示1单元
        "buildId": "1#"//楼栋id,表示1号楼
    },
    {
        "name": "102",
        "floor": "1-1",
        "unit": "1",
        "buildId": "1#"
    },
    {
        "name": "201",
        "floor": "1-2",
        "unit": "1",
        "buildId": "1#"
    },
    {
        "name": "202", //房间号，表示2楼2号房
        "floor": "1-2",//楼层号，表示1单元2楼
        "unit": "1",
        "buildId": "1#"
    },
    {
        "name": "101",//房间号，表示1楼1号房
        "floor": "2-1",//楼层号，表示2单元1楼
        "unit": "2",//单元号，表示2单元
        "buildId": "1#"
    },
    {
        "name": "101",//房间号，表示2楼1号房
        "floor": "2-2",//楼层号，表示2单元2楼
        "unit": "2",//单元号，表示2单元
        "buildId": "1#"
    }];



let result = data.reduce((result, room) => {
    let unit = result.unit.find(unit => unit.id == room.unit);
    if (unit) {
        let floor = unit.floor.find(floor => floor.id == room.floor);
        if (floor) {
            floor.room.push(room);
        } else {
            let roomList: Array<Room> = [];
            roomList.push(room);
            let floor: Floor = { id: room.floor, room: roomList };
            unit.floor.push(floor);
        }
    } else {
        let roomList: Array<Room> = [];
        roomList.push(room);
        let floorList: Array<Floor> = [];
        floorList.push({ id: room.floor, room: roomList });
        let unit = { id: room.unit, floor: floorList };
        result.unit.push(unit);
    }
    return result;
}, { buildId: '1#', unit: [] } as Build);

https://segmentfault.com/q/1010000006828939