Did Jesus observe Purim or Hanukkah?

All though the Gospels do not mention Christ observing those specific Jewish feasts, it is a safe assumption that he did whatever was expected of an observant Jew in his community during his time.

Jesus made his attitude toward the Law crystal clear in Matthew 5:17-18,

Think not that I have come to abolish the law and the prophets; I have come not to abolish them but to fulfill them. For truly, I say to you, till heaven and earth pass away, not an iota, not a dot, will pass from the law until all is accomplished.

https://archive.gci.org/articles/jesus-the-sabbath-and-old-testament-festivals/

Here's some more reading on the subject:

https://www.lifeandland.org/2008/12/jesus-celebrated-purim/

Not sure how reliable this may be--

"Did Jesus celebrate Purim? It is written in John chapter 5 that he was in Jerusalem for an unnamed feast, but scholars have questioned which feast this was. Some have rejected the idea that this is Purim because it is considered a "minor" feast and not one of the 'shelosh regalim' (three pilgrimiage festivals). However, we know that Jesus celebrated Chanukah (John 10:22)..."

http://www.hebrew4christians.com/Holidays/Winter_Holidays/Purim/purim.html

"Now Hanukkah was taking place in Jerusalem. It was winter," Jn. 10:22, ISV

"And it was at Jerusalem the feast of the dedication, and it was winter." John 10:22-30 (King James Version)

"Then came the Feast of Dedication[a] at Jerusalem."
a. John 10:22 That is, Hanukkah
http://www.biblegateway.com/passage/?search=John%2010:22-30&version=31;

Purim is not a holiday that a Jew would go to Jerusalem to celebrate. There are no special sacrifices associated with it, and the main customs observed by Jews since Purim was established as a holiday were the reading of the book of Esther and feasting (though to what degree is a matter of dispute even as late as Talmudic times, centuries after Jesus' death). Still, by the time Jesus was active, Purim was an established holiday among the Jewish people.