Empresas
Empleos
  • Sobre nosotros
  • Soluciones
    • Publicación de vacantes
      Publica tu vacante y recibe candidatos calificados en 48h.
    • Evaluación de candidatos
      500+ pruebas técnicas y psicológicas, más anti-fraude.
    • Headhunting
      Búsqueda ejecutiva a la medida de principio a fin.
    • Nómina + EOR
      Dispersión de nómina y EOR en más de 15 países de LATAM.
  • Precios
  • Empleos

0

378
Vistas
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 Respuestas
Responde la pregunta

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 Denunciar
Responde la pregunta
Encuentra empleos remotos

¡Descubre la nueva forma de encontrar empleo!

Top de empleos
Top categorías de empleo
Empresas
Publicar vacante Precios Comercial
Legal
Términos y condiciones Política de privacidad
© 2026 PeakU Inc. All Rights Reserved.
Andres GPT
Recomiéndame algunas ofertas
Necesito ayuda