Webpack default mode not set to production

[tsonge]

Bug report

As stated in https://webpack.js.org/configuration/mode/, "If not set, webpack sets production as the default value for mode."

What is the current behavior?
argv does not contain mode property set to 'production', when invoking webpack without any mode set.

If the current behavior is a bug, please provide the steps to reproduce.
file webpack.config.js:

module.exports = (env, argv) => { console.log(argv); }

now run webpack, without setting any mode, and see that the argv object logged does not contain mode property set to 'production'.

What is the expected behavior?

argv object should have mode property set to 'production'.

Other relevant information:
webpack version: 4.43.0
Node.js version: 14.3.0
Operating System: Mac OSX 10.15.5
Additional tools: None

[snitin315]

@tsonge Thanks for reporting. I was able to reproduce. I will send a fix soon.