Js traverses the json key and value instances, jsjsonkeyvalue

Js traverses the json key and value instances, jsjsonkeyvalue

Native js traverses json objects

Traverse json objects:

Irregular:

<Script> var json = [{dd: 'SB ', AA: 'dongdong', re1: 123}, {cccc: 'dd', lk: '1qw'}]; for (var I = 0, l = json. length; I <l; I ++) {for (var key in json [I]) {alert (key + ': '+ json [I] [key]) ;}</script>

Regular:

PackJson = [{"name": "nikita", "password": "1111" },{ "name": "tony", "password": "2222"}]; for (var p in packJson) {// when traversing the json array, write p as the index, 0, 1 alert (packJson [p]. name + "" + packJson [p]. password );}

You can also use this:

for(var i = 0; i < packJson.length; i++){  alert(packJson[i].name + " " + packJson[i].password);}

Traverse json objects

MyJson = {"name": "caibaojian", "password": "1111"}; for (var p in myJson) {// traverses each key/value pair of the json object, p is key alert (p + "" + myJson [p]);}

The following json objects are available:

Var obj = {"name": "Feng Juan", "password": "123456", "department": "Technology department", "sex": "female", "old ": 30 };

Traversal method:

for(var p in obj){str = str+obj[p]+',';return str;}

The above example of js traversal of the json key and value is all the content shared by Alibaba Cloud xiaobian. I hope to give you a reference and support for the customer's house.