A custom Node.js console that writes to stderr and the debug console

console.js

const inspector = require("inspector");

// See:
// https://github.com/nodejs/node/blob/v22.2.0/lib/internal/util/inspector.js#L83

// Wrap a console implemented by Node.js with features from the VM inspector
function wrapConsole(console) {
  const inspectorConsole = inspector.console;
  for (const key of Object.keys(inspectorConsole)) {
    // If the console has the same method as the inspector console,
    // then wrap these two methods into one.
    if (console.hasOwnProperty(key)) {
      const func = console[key];
      console[key] = function () {
        func.apply(console, arguments);
        inspectorConsole[key].apply(inspectorConsole, arguments);
      }.bind(console);
      Object.defineProperty(console[key], "name", {
        value: key,
      });
    } else {
      // Add additional console APIs from the inspector
      console[key] = inspectorConsole[key];
    }
  }
  return console;
}

module.exports = wrapConsole(new console.Console(process.stderr));