https://denvaar.dev denvaar's personal site. Most of the content is on software development and computer programming. However, other one-off topics are in the mix. en-us How does the BWT work, and why is it useful for compression? programming https://denvaar.dev/posts/burrows_wheeler_transform.html Sat Apr 04 21:40:09 MDT 2026 My review of A Philosophy of Software Design by John Ousterhout reviews,programming https://denvaar.dev/posts/a_philosophy_of_software_design_review.html Sat Jul 27 23:40:09 MDT 2024 My summary / review / thoughts about the 2023 film, The Holdovers. Directed by Alexander Payne and written by David Hemingson. reviews https://denvaar.dev/posts/the_holdovers_review.html Sun June 09 23:40:09 MDT 2024 I developed a web app for my wife's landscape design business. It's been in use for a couple of years now. This is a summary of the technology, and some of the challenges I faced. programming https://denvaar.dev/posts/primula_app_retro.html Sun June 02 23:40:09 MDT 2024 Walking goal completed. health https://denvaar.dev/posts/365_walks.html Sun Dec 31 23:40:09 MDT 2023 Understanding why a concise, macro-defined array can be used as a lookup table for finding the number of set bits in a number. programming https://denvaar.dev/posts/population_count_pattern.html Tue Oct 24 23:40:09 MDT 2023 How and why to go for the classic, but rare high five as you ride past. cycling https://denvaar.dev/posts/high_five.html Thu Jun 18 23:40:09 MDT 2023 Rank is a fundamental operation for Succinct Data Structures. It counts the number of set bits up to a given index in a bit array. How can this be done in constant time and sub-linear space? data structures succinct https://denvaar.dev/posts/jacobsons_rank.html Thu Jun 09 23:40:09 MDT 2023 Spoilers warning. What's the significance (if any) of the "Car Guy" interaction in S3:E1? reviews https://denvaar.dev/posts/joe_pera_car_guy.html Thu Jun 01 23:40:09 MDT 2023 Review of the 2022 movie "Everything Everywhere All at Once". Directed by Daniel Kwan and Daniel Scheinert. Starring Michelle Yeoh, Stephanie Hsu, Ke Huy Quan, and Jamie Lee Curtis. brain dump reviews https://denvaar.dev/posts/everything_everywhere_all_at_once.html Sat Mar 25 23:40:09 MDT 2023 Review of Jonathan Richman's 1990 album, "Jonathan Goes Country". music reviews https://denvaar.dev/posts/jonathan_goes_country.html Wed Nov 30 23:40:09 MST 2022 Karen is an under-documented language. This is a high-level overview of some of the charicteristics and attributes of the language. culture language Sun Aug 28 23:40:09 MDT 2022 https://denvaar.dev/posts/sgaw_karen_language.html Plain and simple things for team members to follow when reviewing each other's code. programming soft-skills Sun Aug 29 23:40:09 MDT 2021 https://denvaar.dev/posts/how_to_review_code.html Summarized chapters and sections from my reading of Kent Beck's "Extreme Programming Explained". Sentiments from one and two-star Amazon reviews of the book. Some of my thoughts about XP as well. software development soft-skills reviews Tue Feb 2 23:40:09 MST 2021 https://denvaar.dev/posts/xp_notes.html I programmed a web application rendition of a board game called Sternhalma. programming projects elixir Sun Jan 17 23:40:09 MST 2021 https://denvaar.dev/posts/board_game.html Going meta - Working through a programming problem to understand problem solving techniques. programming python Wed Oct 28 23:40:09 MDT 2020 https://denvaar.dev/posts/problem_solving_example.html Cross-site request foregery is one of many techniqu es an attacker might use to pwn a web application. In this article we take a close look at how exactly CSRF tokens work from the conte xt of the Phoenix Web Framework. programming Wed Feb 19 23:40:09 MST 2020 https://denvaar.dev/posts/csrf_tokens_with_phoenix.html A recap of the hack nights that Underbelly held for Hacktoberfest 2019: a global, month-long hackathon. software development programming Fri Nov 15 23:40:09 MST 2019 https://denvaar.dev/posts/hacktoberfest_2019.html A quick demo exploring how HTTP content negotiation works with Phoenix. programming elixir Thu Dec 6 23:40:09 MST 2018 https://denvaar.dev/posts/content_negotiation_and_phoenix.html Base64 is an encoding scheme used to change binary data into text. programming Tue Oct 2 23:40:09 MDT 2018 https://denvaar.dev/posts/base64_basics.html Small pull requests help improve the code review process, but making it a priority has helped me improve in several ot her ways. software development soft-skills Tue Aug 28 23:40:09 MDT 2018 https://denvaar.dev/posts/unexpected_benefits_from_shrinking_my_pull_requests.html I have a lot of things that I want to learn and build. I've found that planning and organizing puts me in a better position to take my goals from start to finish. software development soft-skills Tue Apr 10 23:40:09 MDT 2018 https://denvaar.dev/posts/planning_helps_me_finish_things.html I had the chance to attend LoneStar ElixirConf 2018 - a programming conference in Austin, Texas. I sat in a conference room for two days and listened to people talk. 🎶 These are a few of my favorite things. 🎶 programming elixir Sat Feb 24 23:40:09 MST 2018 https://denvaar.dev/posts/favorite_things_from_elixir_conf.html Challenges, takeaways, and findings of coding up a famous text compression algorithm. programming Mon Jan 15 23:40:09 MST 2018 https://denvaar.dev/posts/exploring_text_compression.html Fun project using the Raspberry Pi camera module to catch creeps, thieves, and what-have-you. programming projects python Mon Jul 17 23:40:09 MDT 2017 https://denvaar.dev/posts/makeshift_security_camera.html Exploring a different way of approaching and solving problems with the cool functional language of Elixir. programming elixir Sun Jun 25 23:40:09 MDT 2017 https://denvaar.dev/posts/on_learning_elixir.html An explanation of an important public key cryptography algorithm as well as some of the history behind it. programming Mon Jun 19 23:40:09 MDT 2017 https://denvaar.dev/posts/diffie_hellman_key_exchange.html Height and depth of a tree and determining if it's balanced. programming Thu Feb 16 23:40:09 MST 2017 https://denvaar.dev/posts/more_binary_tree_properties.html Review of the basic data structure Binary Search Tree (BST) programming Tue Feb 14 23:40:09 MST 2017 https://denvaar.dev/posts/data_structures_binary_search_tree.html Overview of Breadth and Depth first traversal in a Binary Tree. programming Sun Feb 12 23:40:09 MST 2017 https://denvaar.dev/posts/binary_tree_traversal.html Some information about using OFX for obtaining financial data. programming Mon Jan 9 23:40:09 MST 2017 https://denvaar.dev/posts/open_financial_exchange.html Quick example of the Strategy pattern in Python. programming python Tue Nov 10 23:40:09 MST 2015 https://denvaar.dev/posts/design_patterns_strategy.html Example of the Template Method design pattern with Python. programming python Mon Nov 9 23:40:09 MST 2015 https://denvaar.dev/posts/design_patterns_template_method.html A brief description of an efficient solution to gather new time series data. programming projects python Fri Oct 23 23:40:09 MDT 2015 https://denvaar.dev/posts/gathering_time_series_data.html Tips from Guido Van Rossum about code optimization. programming python Wed Sep 23 23:40:09 MDT 2015 https://denvaar.dev/posts/python_code_optimization_tips.html Code optimization analysis using Python's timeit module. programming python Fri Jun 19 23:40:09 MDT 2015 https://denvaar.dev/posts/optimization_with_timeit.html