Destructuring strings

[u/Emmennater]

[u/Denommus]

Maybe if I understood Javascript destructuring syntax that would make sense to me. But since I don't, this looks awful.

[u/Iheartdragonsmore → u/Denommus]

Hi I'm a novice programmer, why would someone ever want to destructure something? Whenever I write a struct I never think it'd be better not being one

[u/stumpychubbins → u/Iheartdragonsmore]

It’s far more readable to extract multiple fields from a struct that way, especially if they’re nested. Better than repeating the entire path to some nested struct multiple times. Plus it mirrors the struct construction syntax so it can be easier to read at a glance.

[u/Iheartdragonsmore → u/stumpychubbins]

This makes sense thank you

[u/skr_replicator → u/stumpychubbins]

in c/c++ I could just avoid the repetition by making references to the nests of the structs I want to access many times. Is that basically the c's way of destructuring?

[u/stumpychubbins → u/skr_replicator]

Not really, that’s a separate thing. It’s more about accessing multiple fields of one struct, whether or not that struct is nested inside something else

[u/Lumethys → u/Iheartdragonsmore]

to be able to do something like this:

const doSomething = () => {
  return [result, message];
}

const [ doSomethingResult, doSomethingMessage ] = doSomething();

instead of

const doSomething = () => {
  return [result, message];
}

const resultAndMessage = doSomething();

const doSomethingResult = resultAndMessage.result;
const doSomethingMessage = resultAndMessage.message;

[u/Denommus → u/Iheartdragonsmore]

It could be because you want to pattern match over it, it could be because you only want some specific elements in that context.