1 var jsonData = eval(`[
2 {"id":"4","pid":"1","name":"大家电"},
3 {"id":"5","pid":"1","name":"生活电器"},
4 {"id":"1","pid":"0","name":"家用电器"},
5 {"id":"2","pid":"0","name":"服饰"},
6 {"id":"3","pid":"0","name":"化妆"},
7 {"id":"7","pid":"4","name":"空调"},
8 {"id":"8","pid":"4","name":"冰箱"},
9 {"id":"9","pid":"4","name":"洗衣机"},
10 {"id":"10","pid":"4","name":"热水器"},
11 {"id":"11","pid":"3","name":"面部护理"},
12 {"id":"12","pid":"3","name":"口腔护理"},
13 {"id":"13","pid":"2","name":"男装"},
14 {"id":"14","pid":"2","name":"女装"},
15 {"id":"15","pid":"7","name":"海尔空调"},
16 {"id":"16","pid":"7","name":"美的空调"},
17 {"id":"19","pid":"5","name":"加湿器"},
18 {"id":"20","pid":"5","name":"电熨斗"}
19 ]`);
20
21 function transData(data, idStr, pidStr, chindrenStr) {
22 var arr = [],
23 hash = {},
24 id = idStr,
25 pid = pidStr,
26 children = chindrenStr;
27
28 for (var i = 0; i < data.length; i++) {
29 hash[data[i][id]] = data[i];
30 }
31 for (var j = 0; j < data.length; j++) {
32 //data 中每一项
33 var arrVal = data[j],
34 //找父分类
35 hashVP = hash[arrVal[pid]];
36 //pid 不为 0
37 if (hashVP) {
38 !hashVP[children] && (hashVP[children] = []);
39 hashVP[children].push(arrVal);
40 }
41 //pid 为 0
42 else {
43 // 将data 的对象添加到数组中
44 arr.push(arrVal);
45 }
46 }
47 return arr;
48 }
49
50 var jsonDataTree = transData(jsonData, 'id', 'pid', 'chindren');
51 console.log(jsonDataTree);
