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

<h1>从 JavaScript 对象创建 JSON 字符串</h1>

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

<script>
var obj = { name: "Bill", age: 62, city: "Seatle" };
var myJSON = JSON.stringify(obj);
document.getElementById("demo").innerHTML = myJSON;
</script>

</body>
</html>
运行结果: