在json中传递函数并执行 [英] pass function in json and execute

问题描述

有没有办法可以将函数作为json字符串传递（使用JSON.stringify进行转换），将其发送到另一个函数，解析json然后执行json中的函数？我正在使用jquery和javascript。

Is there any way that I can pass a function as a json string (conversion with JSON.stringify), send it to another function, parse the json and then execute the function that was in the json? I am using jquery and javascript.

推荐答案

这是一个有效的示例

基本上，你必须小心这类事情。如果您使用现有的javascript函数，将其转换为字符串，并对其进行评估，则可能会遇到函数重新声明问题。如果您只是从服务器中获取一个函数字符串并且想要运行它，那么您可以像我在jsfiddle上那样做：

Basically, you have to be careful with this sort of thing. If you take an extant javascript function, turn it to a string, and eval it, you might run into function redeclaration issues. If you are simply taking a function string from the server and you want to run it, you can do as I did on that jsfiddle:

Javascript

var myFunc = "function test() {alert('test');}";

$(document).ready(function() {
    var data = new Object();
    data.func = myFunc;
    var jsonVal = $.toJSON(data);
    var newObj = $.evalJSON(jsonVal);
    eval(newObj.func);
    test();
});​

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