How can one feed stuff into a script's stdin while in the debugger interface?

Question

I've run:

node debug f.js

And now I have a:

debug>

prompt. How can I toggle between the stuff I type into the terminal being interpreted as debug commands and it being fed to the script's stdin?

Answer 1

Debugging programs that read from stdin is vastly easier after the inclusion of inspector to node core in version 8+.

1. Run the program via: node --inspect-brk f.js
2. Open Chrome.
3. Open chrome://inspect
4. Click "Open dedicated DevTools for Node"

This will separate the debugger input out to a "remote" debugger allowing you to continue sending input into your program from command line.

I pulled the steps from this fantastic blog by Paul Irish

Answer 2

In VSCode, you can add a new Debug Configuration file with the property "console" set to "integratedTerminal".

"configurations": [
{
  "type": "node",
  "request": "launch",
  "name": "Launch Program",
  "program": "${workspaceFolder}\\index.js",
  "console": "integratedTerminal"
}]

So now you can type into the terminal and debug your code.