To a very large extent I agree with this. Unit tests are a horrible replacement for a lack of static typing. That doesn't mean they aren't useful, but if you're using unit tests to prevent breakages during refactoring, do yourself a favor and just learn a freaking statically typed language.
That is, learn literally anything other than JavaScript.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
To a very large extent I agree with this. Unit tests are a horrible replacement for a lack of static typing. That doesn't mean they aren't useful, but if you're using unit tests to prevent breakages during refactoring, do yourself a favor and just learn a freaking statically typed language.
That is, learn literally anything other than JavaScript.