Passo 8

Instruções

As you learned in previous lessons, the change event is triggered when the user modifies the value of certain input elements. Você quer poder atualizar sua página toda vez que um novo valor for selecionado no menu dropdown. Para isso, adicione um event listener para o evento change em selectContainer. Por enquanto, dentro do callback, registre a string this is a test no console. Então, selecione diferentes opções do seu menu suspenso e verifique o console para testar se o event listener funciona corretamente.

O que fazer:

Testes:

Você deve adicionar um event listener para o evento `change` em `selectContainer` e registrar a string `this is a test` dentro do callback passado para o método.

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Music Instruments product page</title>
    <link rel="stylesheet" href="./styles.css" />
  </head>
  <body>
    <h1>Student Instruments</h1>

    <main>
      <select class="select-container">
        <option id="all" value="all">All</option>
        <option id="woodwinds" value="woodwinds">Woodwinds</option>
        <option id="brass" value="brass">Brass</option>
        <option id="percussion" value="percussion">Percussion</option>
      </select>

      <div class="products-container">
        <div class="card">
          <h2>Flute</h2>
          <p>$500</p>
        </div>
        <div class="card">
          <h2>Clarinet</h2>
          <p>$200</p>
        </div>
        <div class="card">
          <h2>Oboe</h2>
          <p>$4000</p>
        </div>

        <div class="card">
          <h2>Trumpet</h2>
          <p>$200</p>
        </div>
        <div class="card">
          <h2>Trombone</h2>
          <p>$300</p>
        </div>
        <div class="card">
          <h2>French Horn</h2>
          <p>$4300</p>
        </div>

        <div class="card">
          <h2>Drum Set</h2>
          <p>$500</p>
        </div>
        <div class="card">
          <h2>Xylophone</h2>
          <p>$3000</p>
        </div>
        <div class="card">
          <h2>Cymbals</h2>
          <p>$200</p>
        </div>
        <div class="card">
          <h2>Marimba</h2>
          <p>$3000</p>
        </div>
      </div>
    </main>
    <script src="./script.js"></script>
  </body>
</html>

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --dark-grey: #0a0a23;
  --white: #ffffff;
  --yellow: #f1be32;
}

body {
  background-color: var(--dark-grey);
  color: var(--white);
}

h1 {
  text-align: center;
  margin-top: 20px;
}

.select-container {
  display: block;
  margin: 25px auto;
  padding: 8px;
  border: 4px solid var(--white);
  border-radius: 4px;
  width: 200px;
}

.products-container {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

@media (min-width: 760px) {
  .products-container {
    flex-direction: row;
  }
}

.card {
  background-color: var(--white);
  color: var(--dark-grey);
  border: 4px solid var(--yellow);
  border-radius: 5px;
  padding: 10px;
  width: 200px;
}

const instrumentsArr = [
  { category: "woodwinds", instrument: "Flute", price: 500 },
  { category: "woodwinds", instrument: "Clarinet", price: 200 },
  { category: "woodwinds", instrument: "Oboe", price: 4000 },
  { category: "brass", instrument: "Trumpet", price: 200 },
  { category: "brass", instrument: "Trombone", price: 300 },
  { category: "brass", instrument: "French Horn", price: 4300 },
  { category: "percussion", instrument: "Drum Set", price: 500 },
  { category: "percussion", instrument: "Xylophone", price: 3000 },
  { category: "percussion", instrument: "Cymbals", price: 200 },
  { category: "percussion", instrument: "Marimba", price: 3000 }
]

const selectContainer = document.querySelector("select");
const productsContainer = document.querySelector(".products-container");

Preview