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#functional-programming

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RDRomain Deneauromain-deneau.hashnode.devJul 28 · 19 min read

Designing a C#-friendly Result type (not just an F# port)

Our team at D-EDGE works on a codebase that is roughly ¾ F# – ¼ C#. On the F# side, Result<'ok, 'error> is everywhere: business failures flow through return values, signatures tell the truth, and no t

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MMMaksim Martianovmartianov.devJul 28 · 9 min read

Data Races Are a Compile Error Now: GALA in July (0.63 -> 0.72)

Go's race detector is very good at what it does. What it does is watch a program run and report races it actually observed. That last part is the whole problem. go test -race finds the race your test

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SGSergio González Téllezevankhandev.hashnode.devJul 7 · 2 min read

Why can two pieces of code that produce the same result lead to completely different mental architectures?

SEED-005 PROBLEM Why can two pieces of code that produce the same result lead to completely different mental architectures? INSIGHT In Python programming, the for loop shows how to traverse the stat

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MMMaksim Martianovmartianov.devJul 5 · 8 min read

GALA in June: do-notation, applicative validation, and concurrent binds (0.56 -> 0.62)

A follow-up to The State of GALA: May 2026. In May, GALA hit 0.50.0 with sealed types, exhaustive pattern matching, a real monad stack (Option, Either, Try, Future, IO), and a functional standard libr

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DPDan Pozmanterenglens.hashnode.devJun 23 · 4 min read

Introducing Gossamer

I'd been designing a language in my head for years with favorite features pulled from languages like Rust, F#, Kotlin, and Go. I love learning and thinking about language design. I've been reading abo

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SSamsammoulem.hashnode.devJun 22 · 5 min read

Conway's game of life without state - part 2

In this follow-up, I want to cover some of the design decisions and refactoring(s) that emerged while building a stateless implementation of Conway's Game of Life. For reference, the code from Part 1

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SNShah Nawazblog.nawaz.infoJun 18 · 7 min read

Attempt to Learn Elixir: Functions and Patterns

Elixir is a functional programming language. Functional languages are built with functions as first-class citizens and tend to involve a declarative style of programming, where we specify what is to b

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RDRomain Deneauromain-deneau.hashnode.devJun 17 · 23 min read

A real-world F# computation expression: short-circuiting computations

title: "A real-world F# computation expression: short-circuiting computations" description: A case study of a small custom F# computation expression that models short-circuiting steps with domain-mean

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SSamsammoulem.hashnode.devJun 15 · 7 min read

From Interview Question to Stateless Game of Life - part 1

I had the idea for this article more than a year ago. Like many good ideas, it arrived at an inconvenient moment: on my way home after an interview. I remember thinking, "I should write this down when

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MMMaksim Martianovmartianov.devJun 14 · 8 min read

From Zero to a Go Module on Bazel in One Sitting: Onboarding to GALA 0.53

There's a specific moment that decides whether a new language is worth your time: the first time you try to use something from the ecosystem you already depend on. For a language that transpiles to Go

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Trending tags this week

Designing a C#-friendly Result type (not just an F# port)

Data Races Are a Compile Error Now: GALA in July (0.63 -> 0.72)

Why can two pieces of code that produce the same result lead to completely different mental architectures?

GALA in June: do-notation, applicative validation, and concurrent binds (0.56 -> 0.62)

Introducing Gossamer

Conway's game of life without state - part 2

Attempt to Learn Elixir: Functions and Patterns

A real-world F# computation expression: short-circuiting computations

From Interview Question to Stateless Game of Life - part 1

From Zero to a Go Module on Bazel in One Sitting: Onboarding to GALA 0.53