How can I parse the script code?

Question

How do I parse the script tag or script URL I specified?

As a result of the parse operation, I will be able to obtain the script global variables and functions within the object. it should be able to show the default values of the variables.

Example

// Input

var a = 5;

function b(){}

var c = function(){
        var d=1;
};

Result

// Output
{
   "a":{
      "type":"variable",
      "value":5
   },
   "b":{
      "type":"function",
      "type":"void"
   },
   "c":{
      "type":"function",
      "type":"void",
      "scope":{
         "d":{
            "type":"variable",
            "value":1
         }
      }
   }
}

Is there a library that will work like the example above?

Answer 1

ITNOA

as you can see in JavaScript parser in JavaScript many library have this, for example

• UglifyJS
• Esprima
• acorn
• https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API