Parse process.argv into object which matching the format you need.

demo-app.js

const getWantedArgvObject = require('./parse-process-argv.js');

const argvObj = getWantedArgvObject(process.argv, {
  '--deligate-comps': String,
  // ...
});

parse-process-argv.js

const arg = require('arg');

module.exports = getWantedArgvObject = (processArgv, schema) => {
  return arg(schema, { permissive: true, argv: processArgv });
};