How often do you maintain the code that's not a part of your favorite stack?

How often do you maintain the code that's not a part of your favorite stack?

Madza - May 12 '21 -

- Dev Community

For example, you are focusing on mastering MERN stack, but you still have to maintain codebases written in PHP and jQuery (no offense).

How often do you find yourself in situations like these?

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