Functional bros be like(lemmy.world)

Keeping state managed. The data for the function will be very predictable. This is especially important when it comes to multithreading. You can’t have a race condition where two things update the same data when they never update it that way at all.

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madcaesar@lemmy.world

1 point

8 months ago

Hm I’m having trouble visualizing this do you know a quick little example to illustrate this?

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frezik@midwest.social

1 point

8 months ago

Rather than me coming up with an elaborate and contrived example, I suggest giving a language like Elixir a try. It tends to force you into thinking in terms of immutability. Bit of a learning curve if you’re not used to it, but it just takes practice.

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madcaesar@lemmy.world

1 point

8 months ago

Ok how about this then, I frequently do something like this:

let className = 'btn'
  if (displayType) {
    className += ` ${displayType}`
  }
  if (size) {
    className += ` ${size}`
  }
  if (bordered) {
    className += ' border'
  }
  if (classNameProp) {
    className += ` ${classNameProp}`
  }

How would this be made better with a functional approach? And would be more legible, better in anyway?

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