本文实例讲述了js 解析 JSON 数据。分享给大家供大家参考，具体如下：
JSON 数据如下：
{
"name": "mkyong",
"age": 30,
"address": {
"streetAddress": "88 8nd Street",
"city": "New York"
},
"phoneNumber": [
{
"type": "home",
"number": "111 111-1111"
},
{
"type": "fax",
"number": "222 222-2222"
}
]
}
要在JavaScript中访问JSON对象，使用 JSON.parse() 解析它，并通过“.”或“[]”访问。
JS 代码如下：
<script>
var data = '{"name": "mkyong","age": 30,"address": {"streetAddress": "88 8nd Street","city": "New York"},"phoneNumber": [{"type": "home","number": "111 111-1111"},{"type": "fax","number": "222 222-2222"}]}';
var json = JSON.parse(data);
console.log(json["name"]); //mkyong
console.log(json.name); //mkyong
console.log(json.address.streetAddress); //88 8nd Street
console.log(json["address"].city); //New York
console.log(json.phoneNumber[0].number); //111 111-1111
console.log(json.phoneNumber[1].type); //fax
console.log(json.phoneNumber.number); //undefined
</script>
运行结果：
