From Ravioli Maker to International Speaker

Michele Riva

Michele Riva

Senior Software Architect @NearForm

Google Developer Expert

Microsoft MVP

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My background

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puts "Hello, world!"
IO.puts "Hello, world!"

Ruby

Elixir

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Me with Ruby

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Me with Elixir

Things to learn

  • Functional programming patterns

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Things to learn

  • Functional programming patterns
  • Recursion

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Things to learn

  • Functional programming patterns
  • Recursion
  • Immutability

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Things to learn

  • Functional programming patterns
  • Recursion
  • Immutability
  • Distributed computing

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Things to learn

  • Functional programming patterns
  • Recursion
  • Immutability
  • Distributed computing
  • BEAM (Erlang VM)

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Functional programming community is a niche

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Contributingto Haskell

OSS projects

Growing in my current company

Me

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ES6

Haskell has been very influential for JavaScript

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var numbers = [1, 2, 3, 4];

for (var i = 0; i < numbers.length; i++) {
  numbers[i] = numbers[i] * 2;
}

console.log(numbers);
const numbers = [1, 2, 3, 4];
const multiplied = numbers
	.map((number) => number * 2);

console.log(multiplied);

Until ES5

Starting with ES6

Why calling it .map?

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"In mathematics, specifically category theory, a functor is a mapping between categories"

https://en.wikipedia.org/wiki/Functor

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"Haskell, at its core, is simple: it is just a polymorphic lambda calculus with lazy evaluation plus algebraic data types and type classes"

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"Haskell, at its core, is simple: it is just a polymorphic lambda calculus with lazy evaluation plus algebraic data types and type classes"

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Category theory can be helpful in understanding Haskell's type system. There exists a "Haskell category", of which the objects are Haskell types, and the morphisms from types a to b are Haskell functions of type a -> b.

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Category theory can be helpful in understanding Haskell's type system. There exists a "Haskell category", of which the objects are Haskell types, and the morphisms from types a to b are Haskell functions of type a -> b.

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map (3*) [1,2,3,4,5]
[1,2,3,4,5].map((x) => x * 3);

Haskell

JavaScript

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fold (+) [1,2,3,4,5]
[1,2,3,4,5].reduce((acc, val) => acc + val);

Haskell

JavaScript

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filter (>5) [1,2,3,4,5,6,7,8]
[1,2,3,4,5,6,7,8].filter((x) => x > 5);

Haskell

JavaScript

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From Software Engineer

to Sr. Engineer & Technical Evangelist

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I got into the top 0.01% of Medium writers for two months in a row

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How do you succeed writing?

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Find a niche

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  • 22 Sep 2022, Web Developer Conf Hamburg ๐Ÿ‡ฉ๐Ÿ‡ช Compiling and bundling JavaScript, the painless way

  • 19 Jul 2022, StackConf ๐Ÿ‡ฉ๐Ÿ‡ช Are all programming languages in English?

  • 22 Jun 2022, SailsConf ๐Ÿ‡ณ๐Ÿ‡ฌ Solving imaginary scaling issues

  • 17 Jun 2022, React Summit ๐Ÿ‡ณ๐Ÿ‡ฑ You donโ€™t want to server-side render your Next.js app

  • 15 Jun 2022, WeAreDevelopers World Congress ๐Ÿ‡ฉ๐Ÿ‡ช Building a full-text search engine from scratch in TypeScript

  • 3 Jun 2022, CODEStantine ๐Ÿ‡ท๐Ÿ‡ธ Compiling and bundling JavaScript, the painless way

  • 18 May 2022, Codemotion ๐Ÿ‡ฎ๐Ÿ‡น Microfrontend discussion panel

  • 16 May 2022, Sci-fi DevCon ๐Ÿ‡ซ๐Ÿ‡ท Are all programming languages in English?

  • 13 May 2022, BeJS Brussels ๐Ÿ‡ง๐Ÿ‡ช Compiling and bundling JavaScript, the painless way

  • 11 May 2022, Codemotion DevCast ๐Ÿ‡ฎ๐Ÿ‡น Microfrontends with WebPack and module federation

  • 22 Apr 2022, JSDay ๐Ÿ‡ฎ๐Ÿ‡น Refactoring large JavaScript codebases

  • 24 Mar 2022, Codemotion ๐Ÿ‡ฎ๐Ÿ‡น Are all programming in English?

  • 10 Mar 2022, WebDay ๐Ÿ‡ฎ๐Ÿ‡น Understanding JavaScript compilation

  • 18 Feb 2022, Node Congress ๐Ÿ‡ณ๐Ÿ‡ฑ Understanding JavaScript compilation

  • 7 Feb 2022, GRUSP ๐Ÿ‡ฎ๐Ÿ‡น Building a full-text search engine from scratch in TypeScript

  • 20 Jan 2022, Google DevFest Norway ๐Ÿ‡ณ๐Ÿ‡ด Solving imaginary scaling issues

  • 16 Jan 2022, Google DevFest Pakistan ๐Ÿ‡ต๐Ÿ‡ฐ Solving Imaginary Scaling Issues

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Find a niche

Collect feedback

Grow

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Be consistent

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@MicheleRiva

@MicheleRivaCode

/in/MicheleRiva95

www.micheleriva.dev

From ravioli maker to international speaker

By Michele Riva

From ravioli maker to international speaker

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