1 .
let list = [ { "yuanshiquhao": 1, "createtime": "2020-04-29T18:31:00", "quhao": 1, "serverid": "1" }, { "yuanshiquhao": 2, "createtime": "2020-04-30T10:59:00", "quhao": 1, "serverid": "1" }, { "yuanshiquhao": 3, "createtime": "2020-04-30T14:05:00", "quhao": 1, "serverid": "1" }, { "yuanshiquhao": 4, "createtime": "2020-04-30T14:14:00", "quhao": 4, "serverid": "1" }, { "yuanshiquhao": 5, "createtime": "2020-04-30T14:16:00", "quhao": 5, "serverid": "1" }, { "yuanshiquhao": 6, "createtime": "2020-04-30T14:17:00", "quhao": 7, "serverid": "1" }, { "yuanshiquhao": 7, "createtime": "2020-04-30T14:19:00", "quhao": 7, "serverid": "1" } ]
var newlist = list.filter(c => c.quhao == c.yuanshiquhao);
newlist.filter(f => {
let cnode = list.filter(c => c.quhao == f.quhao);
let del = cnode.filter(c => c.yuanshiquhao != f.yuanshiquhao);
el.length > 0 ? (f.children = del) : "";
});
console.log(newlist);
2.
let place = [ { "id": "1", "name": "中国", "code": "110", "parent": "" }, { "id": "2", "name": "北京市", "code": "110000", "parent": "110" }, { "id": "3", "name": "河北省", "code": "130000", "parent": "110" }, { "id": "4", "name": "四川省", "code": "510000", "parent": "110" }, { "id": "5", "name": "石家庄市", "code": "130001", "parent": "130000" }, { "id": "6", "name": "唐山市", "code": "130002", "parent": "130000" }, { "id": "7", "name": "邢台市", "code": "130003", "parent": "130000" }, { "id": "8", "name": "成都市", "code": "510001", "parent": "510000" }, { "id": "9", "name": "简阳市", "code": "510002", "parent": "510000" }, { "id": "10", "name": "武侯区", "code": "51000101", "parent": "510001" }, { "id": "11", "name": "金牛区", "code": "51000102", "parent": "510001" } ]; place = place.filter(father => { //每次都会寻找符合father.code的数据 let childNode = place.filter(child => child.parent == father.code); childNode.length > 0 ? father.children = childNode : ""; return father.parent == ""; }); console.log(place);