This or that? Similar methods & classes in Ruby && Rails

on YouTube ↗37m

" summary

Benchmarks on Ruby 3.3.0 compare many concrete alternatives: cover vs include shows cover ~2x faster on small ranges and massively faster on huge string ranges because include builds members; regular expression choices reveal regex side effects—match? is fastest and doesn’t set Perl globals, ~= and others do; NotImplementedError subclasses ScriptError so generic rescue doesn’t catch it; delegation can generate methods from lambdas but defining is ~146x slower and calling ~7x slower; eval-based tricks are ~281x slower; repo of tests and examples exists.

AI-written summary · about

" chapters (8)

1. 0:00Method vs class differences
2. 5:51Range cover versus include methods
3. 10:48Regex matching options
4. 16:06NoMethodError vs NotImplementedError
5. 18:33Monkey patching vs define_method
6. 21:45Delegation in Ruby/Rails
7. 28:49Calling methods creatively
8. 35:07Q&A

" related talks

• 53mRuby 2 in Ruby on RailsAkira Matsuda · Red Dot Ruby Conference 2017
• 44mRuby Libraries Important for RailsMichael Hartl · RailsConf 2013
• 31mRails Flavored RubyMichael Hartl · RailsConf 2012
• 36mWhy Ruby Isn't SlowAlex Gaynor · Strange Loop 2013
• 01h 02mPerformanceJeremy Kemper · RailsConf Europe 2008
• 53mRuby 2 in Ruby on RailsAkira Matsuda · RedDotRubyConf 2017
• 33mRails is Just RubyJesse Wolgamott · RailsConf 2013
• 26mRails Performance Monitoring 101: A Primer for DevelopersRishi Jain · RubyConf TH 2023