script.js

 
const form = document.querySelector("form")
const nlwSetup = new NLWSetup(form)
const button = document.querySelector('header button')
button.addEventListener('click', add)
form.addEventListener ("change", save)
function add () {
  const today = new Date().toLocaleDateString("pt-br").slice(0, -5)
   
  const dayExists = nlwSetup.dayExists(today)
  if (dayExists) {
    alert ("Dia já incluso!")
    return 
  } 
  alert ("Adicionado com sucesso! ✔")
  nlwSetup.addDay (today)
}

function save (){
  localStorage.setItem("NLWSetup@habits", JSON.stringify(nlwSetup.data))
}

const data = JSON.parse (localStorage.getItem ("NLWSetup@habits"))


/*const data = {
  gym: ["01-01", "01-02", "01-06", "01-07", "01-08"],
  takePills: ["01-03"],
  study: ["01-02"],
}
*/
nlwSetup.setData(data)
nlwSetup.load()