Function wasm_react::hooks::use_effect

pub fn use_effect<G, D>(effect: impl FnOnce() -> G + 'static, deps: Deps<D>) where
    G: FnOnce() + 'static,
    D: PartialEq + 'static, 

Runs a function which contains imperative code that may cause side-effects.

The given function will run after render is committed to the screen when the given dependencies have changed from last render. The function can return a clean-up function.

Example

let state = use_state(|| None);

use_effect({
  let mut state = state.clone();
  let url = self.url;

  move || {
    state.set(|_| Some(fetch(url)));
    || ()
  }
}, Deps::some(self.url));