Debugging NodeJS in VSCode - how to add a breakpoint for console utility?

Question

Node.js

I am writing a console utility
How to create a breakpoint so that it works when the utility is launched with parameters
(ie node app --flag1 --flag2).
The default debugging mode works as if the parameters were not specified
(i.e. running the program on node app)

Answer 1

https://www.npmjs.com/package/command-line-args
index.js

const commandLineArgs = require('command-line-args');
const optionDefinitions = [
  { name: 'flag1', type: Boolean },
  { name: 'flag2', type: Boolean }
];
const options = commandLineArgs(optionDefinitions);
...
if(options.flag1) {
  debugger
}
...