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Michael Hartl

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Learn Enough RubyRubyConf 20192019-11-18
Live coding shows how to go from irb experiments to a packaged rubyconf_palindrome gem, using bundler, mini‑test and a red‑green‑refactor TDD loop. The demo…
Talk on
Lightning TalksRailsConf 20192019-05-01
Skip anything that only restates the topic and pick talks that give concrete outcomes: the actual toolchain and commands used, the precise claim and version…
Lightning on
Lightning TalksRubyConf 20182018-11-28
A rapid sampler with clear takeaways: a finished introductory tutorial called Learn Enough Ruby to be Dangerous that includes Sinatra, shell scripting and gem…
Lightning on
Ten Years of Rails TutorialsRailsConf 20182018-04-17
Chronicle of concrete changes and outcomes: Rails tutorials trace specific moves — migrations and rake db:migrate replacing raw SQL, the emergence of the asset…
Talk on
Lightning TalksRubyConf 20172017-11-15
Pick the bits that make new things or show real numbers: a demo of prebundler: 440 gems in 40s with 6m7s → 43s and an 88% speedup, a Neo4j example showing…
Lightning on
Lightning TalksRailsConf 20172017-04-25
Thirty tiny demos land as either useful tools or warm anecdotes: a hospital hand‑washing analytics mention and Ada Developers Academy 11% acceptance backing a…
Lightning on
Lightning TalksRubyConf 20162016-11-10
Thirty lightning talks compress concrete takeaways: RubyGems traffic hits 4 billion gems and funds are needed to keep mirrors running; practical Git rescue…
Lightning on
Lightning TalksRailsConf 20162016-05-04
Forty five‑minute demos condense into concrete takeaways: a Docker‑based PAS portal is implemented in Rails; API versioning uses grape chain packaging…
Lightning on
Lightning TalksRubyConf 20152015-11-15
Quick notes so picking tonight is concrete: Michael Hartl is soliciting Learn Enough to be Dangerous collaborators and newbies by email; Tommy Talker uses…
Lightning on
Learn Enough Tutorial Writing to Be DangerousLA RubyConf 20152015-10-10
Concrete, actionable rules for writing long‑form tutorials: use a process of successive refinement (free association, content throwdown, main exposition…
Talk on
Enumerable for Fun & ProfitRubyConf 20142014-11-17
Shows concretely how hand‑rolled loops, counters and ad hoc arrays get replaced by Enumerable primitives, with tests running green while refactors land…
Talk on
Ruby Libraries Important for RailsRailsConf 20132013-04-29
Covers learning the Ruby standard library by doing actual experiments not platitudes. Uses IRB live coding, RubyDoc and Sublime Text to discover surprising…
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Rails Flavored RubyRailsConf 20122012-04-23
Covers the Ruby features Rails developers actually use: using rails console (IRB plus Rails) to inspect strings, arrays, hashes and their methods; mutating vs…
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