如何在C＃中获取JavaScript代码的语法错误

Question

在一个用户编写一些JavaScript代码的项目上工作，如果用户代码中存在但我不想执行该代码，我只需要语法错误。.c＃中是否存在任何库或解决方案？

Answer 1

You can use Jint . It can parse and execute JavaScript. We are interested in parsing, so we can do:

static void Main(string[] args)
{
    try
    {
        var validCode   = "alert('Hello World!');";
        var invalidCode = "alert['Hello World!');";
        var jsParser = new JavaScriptParser();
        var result = jsParser.Parse(validCode);
        result = jsParser.Parse(invalidCode); //Will throw...
    }
    catch (Exception ex)
    {
        //Invalid input!!
    }
}