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

<h1>把字符串转换为函数</h1>

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

<script>
var text = '{"name":"Bill Gates", "age":"function() {return 62;}", "city":"Seattle"}';
var obj = JSON.parse(text);
obj.age = eval("(" + obj.age + ")");
document.getElementById("demo").innerHTML = obj.name + ", " + obj.age(); 
</script>

</body>
</html>
运行结果: