源代码 ：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>开源教程(ossoft.cn)</title> </head> <body> <h2>字符串转换为函数</h2> <p id="demo"></p> <script> var text = '{ "name":"Runoob", "alexa":"function () {return 10000;}", "site":"www.ossoft.cn"}'; var obj = JSON.parse(text); obj.alexa = eval("(" + obj.alexa + ")"); document.getElementById("demo").innerHTML = obj.name + " Alexa 排名：" + obj.alexa(); </script> </body> </html>
运行结果