Empresas
Empregos
  • Sobre nós
  • Soluções
    • Publicação de vagas
      Publique sua vaga e receba candidatos qualificados em 48h.
    • Avaliações de candidatos
      Mais de 500 testes técnicos e psicológicos, mais anti-fraude.
    • Headhunting
      Busca executiva personalizada do início ao fim.
    • Folha de Pagamento + EOR
      Dispersão de folha e EOR em mais de 15 países da LATAM.
  • Preços
  • Empregos

0

377
Visualizações
how to use a button to change the body color in javascript?

i wrote this code to change the mode of the page from regular to light to dark mode and change the color of the body but the buttons doesn't work and i keep getting this message in the debugger

html buttons code

   <ul>
             <li> <button type="button" id="l" onclick="myfunction()">Light</button></li>
             <li> <button id="d"> Dark</button> </li>
         </ul>

javascript code

function myfunction(){ document.body.style.background="red";

}

debuggerUncaught

ReferenceError: myfunction is not defined 
No debugger available, can not send 'variables'

enter image description here

i tried changing the buttons to divs and changing the function couple of times but it didn't work

about 4 years ago · Juan Pablo Isaza
1 Respostas
Responde à pergunta

0

See If This Helps

function changeColor(e){
    const body = document.body
    body.classList.toggle("dark")
    e.innerText = body.classList.contains("dark") ? "Light" : "Dark"
}
  .dark {
      background:black;
      color:white;
  }
<body>
  <button onclick="changeColor(this)">Dark</button>

  <br ><br >

  <div class="texts">
  Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
  </div>

</body>

about 4 years ago · Juan Pablo Isaza Relatório
Responde à pergunta
Encontrar trabalhos remotos

Descubra a nova forma de encontrar um emprego!

melhores empregos
Principais categorias de trabalho
Empresas
Postar vaga Preços Comercial
Jurídico
Termos e Condições Política de privacidade
© 2026 PeakU Inc. All Rights Reserved.
Andres GPT
Recomende algumas ofertas para mim
Preciso de ajuda