Semi-colons are pointless in Javascript

A semicolon `;` consists of a comma `,` and a point `•`.

Fallacy Of Red Herring

Appeal to ridicule by exploiting a wordplay

You can't measure how good a programming language is.

A function that suffers off-by-one errors clearly can't be a good measure for quality.

Poisoning The Well

This is just pointing out a mathematical mistake, whose occurrence is irrelevant to the argument. (Still found your comeback funny though.)

You can't measure how good a programming language is.

Java sucks

Begging The Question

Claim without argument or proof; also, not addressing the question

The government should be required to use open source software (for civilian operations at least)

It would turn us all into communists

Fallacy Of Slippery Slope

No way it can accomplish that feat.

Python is better than Ruby

Ruby is a caveman language for garbage people

Irrelevant Conclusion

This fails to explain how Ruby comes off in comparison to Python.

Python is better than Ruby

No. There's no question. Ruby sux!!

Irrelevant Conclusion

That still doesn’t tell us how Ruby comes off in comparison to Python.

Python is better than Ruby

No. There's no question. Ruby sux!!

Prejudicial Language

Judgmental wording