ibrennan

import { useState, useEffect, useCallback } from 'react';

export const useVisbilityState = () => {
  const [visibilityState, setVisibilityState] = useState(null);

  const handleVisbilityChange = useCallback(() => {
    setVisibilityState(document.visibilityState);
  }, [setVisibilityState]);

  useEffect(() => {

lucasalmeida92

VAGA Desenvolvedor Júnior Web/JS

Estamos aumentando nosso time e procuramos um desenvolvedor web/js.

---

---

A vaga é para um desenvolvedor júnior part-time(30h semanais) com as seguintes características:

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---