December 23, 2021 inject, lambda, stream processing - Advent of Code 2021 - Day 16 with Ruby Watch video
December 19, 2021 Hash[], minmax, polymer expansion - Advent of Code 2021 - Day 14 with Ruby Watch video
December 18, 2021 Hash.new, tally, one?, tap, path finding - Advent of Code 2021 - Day 12 with Ruby Watch video
December 17, 2021 heredocs, select with index, paper folding - Advent of Code 2021 - Day 13 with Ruby Watch video
December 14, 2021 constants, enumerable, brackets - Advent of Code 2021 - Day 10 with Ruby Watch video
December 14, 2021 operator overloading, let, heightmap - Advent of Code 2021 - Day 9 with Ruby Watch video
December 14, 2021 pattern matching, Sets, seven segment display - Advent of Code 2021 - Day 8 with Ruby Watch video
December 13, 2021 Float::INFINITY, brute force align the crabs - Advent of Code 2021 - Day 7 with Ruby Watch video
December 11, 2021 Data structure performance Array vs. Hash - Advent of Code - Day 6 with Ruby Watch video
December 11, 2021 array destructuring, operator overload, vents - Advent of Code - Day 5 with Ruby Watch video
December 11, 2021 transpose, flatten, described_class, bingo solver! - Advent of Code 2021 - Day 4 with Ruby Watch video
December 10, 2021 binary and bit fiddling, xor, Array#median - Advent of Code 2021 - Day 3 in ruby Watch video
December 10, 2021 each_cons, inject, and File.readlines - Advent of Code 2021 - Day 1 with ruby Watch video