import { useEffect } from "react";
      
      useEffect(() => {
        
      }, [dependencies]);

      Typescript language logoNext useEffect hook

      next
      effect
      useEffect
      ...
      Next TypeScript recipes

      useEffect accepts a function that contains imperative, possibly effectful code.

      Mutations, subscriptions, timers, logging, and other side effects are not allowed inside the main body of a function component (referred to as Reactโ€™s render phase). Doing so will lead to confusing bugs and inconsistencies in the UI.

      Instead, use useEffect. The function passed to useEffect will run after the render is committed to the screen. Think of effects as an escape hatch from Reactโ€™s purely functional world into the imperative world.

      Shortcut: next.hook.effect.use

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