node-inspect-debugger

You can debug Node.js applications using Chrome DevTools Protocol by running the `node inspect` command or integrating `chrome-remote-interface` to programmatically connect and control the debugging session from your terminal.

Yes, you can inspect inaccessible closure variables by attaching Chrome DevTools Protocol to your Node.js process, which allows you to set breakpoints and directly evaluate local and closure scopes during execution.

To set breakpoints and step through a long-running Node.js dev server, use `node inspect` or `ndb` via CDP to pause execution, inspect the call stack, and step through code programmatically without stopping the process.

You need `chrome-remote-interface` if you want to programmatically interact with the Chrome DevTools Protocol for Node.js debugging, although the built-in `node inspect` command is also available for standard terminal debugging sessions.

`node inspect` provides built-in terminal debugging, while `ndb` integrates with Chrome DevTools Protocol via `chrome-remote-interface` to offer enhanced programmatic inspection of call stacks, closures, and breakpoints.

Using Chrome DevTools Protocol instead of standard logging allows you to inspect inaccessible closure values, set dynamic breakpoints, and step through long-running processes like dev servers without modifying code with temporary logs.