parentTree (arr, id) {
var temp = [];
var callback = function (nowArr, id) {
for (var i = 0; i < nowArr.length; i++) {
var item = nowArr[i];
if (item.id === id) {
temp.push(item);
callback(arr, item.parent_id);
break
} else {
if (item.children) {
callback(item.children, id)
}
}
}
};
callback(arr, id);
return temp
}
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