Questions & Answers about Kommentaren var ironisk.
Because Norwegian often puts the definite article onto the end of the noun.
- en kommentar = a comment
- kommentaren = the comment
So -en here is the definite ending.
In Norwegian, you usually do not use a separate word for the the way you do in English. Instead, the noun itself gets a definite ending.
So:
- kommentar = comment
- en kommentar = a comment
- kommentaren = the comment
That is why Kommentaren var ironisk already includes the idea of the comment without needing a separate article.