It is already a tradition in many programming communities to
create an Advent calendar and publish a new article ever day of December till Christmas.

In addition to the calendars there are also a few Advent Code Challenges collected by Chris Jarvis. There you can also show your knowledge.

This year

• The 2022 December CI Challenge

• Advent of Code of small programming puzzles.

• AdventJS JavaScript/TypeScript Challenges

• Java

• JavaScript by James L

• Lean UXmas

• Perl

• Raku

• Ruby in Japanese

• Python in Japanese

• Wordpress (WPMarmite 2022 Advent Calendar)

Enjoy the reading!

From 2021

• Advent of Code of small programming puzzles.
• Advent of Code Solutions by Abigail 2022?
• Advent of Code by domm 2022?
• AdventJS JavaScript/TypeScript Challenges
• Java
• Lean UXmas
• Perl
• Raku
• Ruby in Japanese
• Python in Japanese
• Sysadvent 2022?
• Web Performance 2022?
• Max Planck Institute 2022?
• Wordpress Snippets 2022?
• The Plus advent calendar of Math 2022?
• The dictionary of old English 2022?
• Python (this is a GitHub repository) 2022?

From 2020

• Advent of Code of small programming puzzles.
• Advent of Code by domm
• Lean UXmas
• Perl
• Python Quiz Advent Calendar: explanations
• Raku
• Ruby

• The Plus advent calendar of Cosmology

• Web Performance

From 2019

• Advent of Code by domm
• 24Ways Advent 2022?

Aggregated Advent Planet

• See also the Advent Planet of Len Jaffe