<script>/** ?* json格式转树状结构 * @param ??{json} ?????json数据 * @param ??{String} ???id的字符串 * @param ??{String} ???父id的字符串 * @param ??{String} ???children的字符串 * @return ?{Array} ????数组 */function transData(a, idStr, pidStr, chindrenStr) { ???var r = [], ???????hash = {}, ???????id = idStr, ???????pid = pidStr, ???????children = chindrenStr, ???????i = 0, ???????j = 0, ???????len = a.length; ???for (; i < len; i++) { ???????hash[a[i][id]] = a[i]; ???} ???for (; j < len; j++) { ???????var aVal = a[j], ???????????hashVP = hash[aVal[pid]]; ???????if (hashVP) { ???????????!hashVP[children] && (hashVP[children] = []); ???????????hashVP[children].push(aVal); ???????} else { ???????????r.push(aVal); ???????} ???} ???return r;}var jsonData = [{"id":"4","pid":"1","name":"大家电"},{"id":"5","pid":"1","name":"生活电器"},{"id":"1","pid":"0","name":"家用电器"},{"id":"2","pid":"0","name":"服饰"},{"id":"3","pid":"0","name":"化妆"},{"id":"7","pid":"4","name":"空调"},{"id":"8","pid":"4","name":"冰箱"},{"id":"9","pid":"4","name":"洗衣机"},{"id":"10","pid":"4","name":"热水器"},{"id":"11","pid":"3","name":"面部护理"},{"id":"12","pid":"3","name":"口腔护理"},{"id":"13","pid":"2","name":"男装"},{"id":"14","pid":"2","name":"女装"},{"id":"15","pid":"7","name":"海尔空调"},{"id":"16","pid":"7","name":"美的空调"},{"id":"19","pid":"5","name":"加湿器"},{"id":"20","pid":"5","name":"电熨斗"}];var jsonDataTree = transData(jsonData, ‘id‘, ‘pid‘, ‘chindren‘);console.log(jsonDataTree);</script>
json 平面转树状 child ?[zhuan]
原文地址：https://www.cnblogs.com/jshare/p/8279837.html