Node + Jsonvalidation键嵌套数组
我有示例json。 在那个JSON中，我需要检查以下的东西。
- 有效的JSON与否。
- 名称键是不需要空的（列表名称和项目名称）。
- 项目数组的长度需要大于5。
我附上了我的代码，并没有工作。 我觉得这种做法不好。 任何人都可以请build议给我正确的道路。
var test = '{ "lists": [ { "items": [ { "name": "Curd0", "sequence": 3 }, { "name": "Curd1", "sequence": 2 }, { "name": "Curd2", "sequence": 1 }, { "name": "Curd3", "sequence": 4 }, { "name": "Curd4", "sequence": 10 }, { "name": "Curd5", "sequence": 9 }, { "name": "Curd6", "sequence": 8 }, { "name": "Curd7", "sequence": 7 }, { "name": "Curd8", "sequence": 6 }, { "name": "Curd9", "sequence": 5 } ], "name": "Curd Family", "status": "new", "created_by": 100036, "created_on": "2016-05-05T13:18:26.169Z" }, { "items": [ { "name": "Milk0", "sequence": 3 }, { "name": "Milk1", "sequence": 2 }, { "name": "Milk2", "sequence": 1 }, { "name": "Milk3", "sequence": 4 }, { "name": "Milk4", "sequence": 10 }, { "name": "Milk5", "sequence": 9 }, { "name": "Milk6", "sequence": 8 } ], "name": "Milk Family", "status": "new", "created_by": 100036, "created_on": "2016-05-05T13:18:44.504Z" }, { "items": [ { "name": "Water0", "sequence": 3 }, { "name": "Water1", "sequence": 2 }, { "name": "Water2", "sequence": 1 }, { "name": "Water3", "sequence": 4 }, { "name": "Water4", "sequence": 10 }, { "name": "Water5", "sequence": 9 }, { "name": "Water6", "sequence": 8 } ], "name": "Water Family", "status": "new", "created_by": 100036, "created_on": "2016-05-05T13:19:02.329Z" }, { "items": [ { "name": "Fruit0", "sequence": 3 }, { "name": "Fruit1", "sequence": 2 }, { "name": "Fruit2", "sequence": 1 }, { "name": "Fruit3", "sequence": 4 } ], "name": "Fruit Family", "status": "new", "created_by": 100036, "created_on": "2016-05-05T13:19:15.503Z" } ] }'; function Validate(data, callback) { for (index in lists) { if (!lists.index.hasOwnProperty('name')) { callback("Name cannot be empty"); } var itemList = lists.index.items; if (itemList.length < 5) { callback("List need more than 5 lenth"); } for ( i = 0; i < itemList.length; i++) { if (!itemList[i].hasOwnProperty('name')) { callback("Item Name cannot be empty"); } } } callback(null); } Validate(test, function (err) { console.log(err); }); 每一个可能是你需要的：
function containsNameInLists(element) { return element.hasOwnProperty('name'); } function containsNameInItems(element) { return element.items.every(containsKeyName); } function containsKeyName(element) { return element.hasOwnProperty('name'); } function lengthSuperiorTo5(element) { return element.length > 5; } function itemsArrayLength(){ return element.items.every(lengthSuperiorTo5); }
您可以使用JSON.parsetesting您的string是否是有效的JSONstring
尝试玩string来testing不同的function。
演示
编辑：我已经添加了额外的function：
编辑演示
callback将多次调用，请添加“退货”：
return callback(...);
为了validationnode.js中的json，有一个好的库： https ： //github.com/hapijs/joi