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Other References

CSSStyleDeclaration JS Conversion


Evento onclick

Exemplo

Execute um JavaScript quando um botão é clicado:

<button onclick="myFunction()">Click me</button>

Definição e uso

O onclickevento ocorre quando o usuário clica em um elemento.


Em HTML:

<element onclick="myScript">

Em JavaScript:

object.onclick = function(){myScript};

Em JavaScript, usando o método addEventListener():

object.addEventListener("click", myScript);


Detalhes técnicos

Bolhas: sim
Cancelável: sim
Tipo de evento: MouseEvent

Tags HTML suportadas :
Todos exceto: <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style> e <title>

Mais exemplos

Clique em um <botão> para exibir a data:

<button onclick="getElementById('demo').innerHTML = Date()">What is the time?</button>

Clique em um elemento <h3> para alterar a cor do texto:

<h3 id="demo" onclick="myFunction()">Click me to change my color.</h3>

<script>
function myFunction() {
  document.getElementById("demo").style.color = "red";
}
</script>

Outro exemplo de como alterar a cor de um elemento:

<h3 onclick="myFunction(this, 'red')">Click me to change my color.</h3>

<script>
function myFunction(element, color) {
  element.style.color = color;
}
</script>

Clique para copiar o texto de um campo de entrada para outro:

<button onclick="myFunction()">Copy Text</button>

<script>
function myFunction() {
  document.getElementById("field2").value =   document.getElementById("field1").value;
}
</script>

Como atribuir um evento "onclick" ao objeto de janela:

window.onclick = myFunction;

  function myFunction() {
document.getElementsByTagName("BODY")[0].style.backgroundColor = "yellow";
}

Use onclick para criar um menu suspenso:

document.getElementById("myBtn").onclick = function() {myFunction()};

function myFunction() {
  document.getElementById("myDropdown").classList.toggle("show");
}

Páginas relacionadas

Tutorial JavaScript: Eventos JavaScript

Referência HTML DOM: evento ondblclick

Referência HTML DOM: evento onmousedown

Referência HTML DOM: evento onmouseup


Suporte ao navegador

onclické um recurso DOM Nível 2 (2001).

É totalmente suportado em todos os navegadores:

Chrome IE Edge Firefox Safari Opera
Yes 9-11 Yes Yes Yes Yes