[SOLVED] The keyword 'private' is reserved when I parse typescript code into ast

The keyword 'private' is reserved when I parse typescript code into ast

I want to parse this code to ast:

const code = `
 class Test {
  constructor(private foo: Foo) { }
 }
`;

But when I run I get error:

  The keyword 'private' is reserved

This is the full code:

import * as escodegen from "escodegen";
import { Parser } from "acorn";

const code = `
class Test {
  
  constructor(private foo: Foo) { }
}
`;

const acorn = Parser.extend(require("acorn-jsx")(), require("acorn-bigint"));

const ast = acorn.parse(code, { ranges: false, ecmaVersion: "latest" });

const output = escodegen.generate(ast);

console.log({ output });

In astexplorer.net it is works. How make it work in codesandbox.io

Solution

You want to use the typescript compiler if you want to work with typescript code. You can read more here: https://github.com/microsoft/TypeScript/wiki/Using-the-Compiler-API