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A comment on Why Algebraic Effects?. Parent comment

Re:Why Algebraic Effects? by FjordWarden on Saturday May 24, 2025 @03:02PM (#44083110)
Yes, this is what Effect-TS is doing for JavaScript, minus the syntactic sugar, but I don't know if this is a good idea in the end. It reminds me of the Spring framework, DI is also a form of AE, but it spreads like cancer through the code. The other day I was watching this talk[1] from EffectDays on how to use effects on the frontend and the entire talk was a dude showing boilerplate that did nothing. I think that AE is a beguiling idea, it lets you express imperative code in a functional language, but in a language like JS the added work of wrapping everything in a function feel like a step down from writing the simples JS you can imagine. Just as a counter example, there is also canvasmotion[2] which also uses coroutines to express scenarios for 2D graphics and this feels like it is making something hard easier.

[1] https://www.youtube.com/watch?v=G_jp87gxILE [2] https://motioncanvas.io/

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Re:Why Algebraic Effects? by duped on Saturday May 24, 2025 @04:14PM (#44083525)
I'm not sure I follow, JS doesn't have coroutines (generator functions can be used kind of like coroutines, but for example you can't resume them with an argument).
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Re:Why Algebraic Effects? by FjordWarden on Saturday May 24, 2025 @05:00PM (#44083785)
Yes it does:

  function* greeter() {
    const name = yield "What's your name?"
    yield `Hello, ${name}!`
  }
  const gen = greeter()
  
  console.log(gen.next().value)
  console.log(gen.next("Alice").value)
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Re:Why Algebraic Effects? by duped on Saturday May 24, 2025 @06:53PM (#44084255)
TIL!
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