代码示例:(标识:eg_js_json_parse)
<!DOCTYPE html>
<html>
<body>

<h1>用 JSON 字符串创建对象</h1>

<p id="demo"></p>

<script>
var text = '{"employees":[' +
'{"firstName":"Bill","lastName":"Gates" },' +
'{"firstName":"Steve","lastName":"Jobs" },' +
'{"firstName":"Elon","lastName":"Musk" }]}';

obj = JSON.parse(text);
document.getElementById("demo").innerHTML =
obj.employees[1].firstName + " " + obj.employees[1].lastName;
</script>

</body>
</html>
运行结果: