GraphQLを用いたサイトに おけるパフォーマンス改善 (ECサイトを題材に)/ Improving online shopping site performance which using the GraphQL
Ruby 2.7 has added Enumerator#produce to generate Enumerator from any custom data-transformation. Before Let’s say we want to print the first 10 numbers of fibonacci series. The code to achieve this would look like: result = Enumerator.new do |yielder| base_1 = 0 base_2 = 1 loop do yielder.yield base_1 base_1, base_2 = base_2, base_1 + base_2 end end result.take(10) => [0, 1, 1, 2, 3, 5, 8, 13, 21
UUID Primary Key in Rails 6 with PostgreSQL and Active Record Updated Mar 6, 2021 8 minute read UUID also known as GUID is an alternative primary key type for SQL databases. It offers some non-obvious advantages compared to standard integer-based keys. Rails 6 release fresh out of beta introduces a new feature in ActiveRecord that makes working with UUID primary keys more straightforward. In this
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