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<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <style> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

Other References

CSSStyleDeclaration JS Conversion


onclick Event

Example

Execute a JavaScript when a button is clicked:

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

The onclick event occurs when the user clicks on an element.


In HTML:

<element onclick="myScript">
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In JavaScript:

object.onclick = function(){myScript};
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In JavaScript, using the addEventListener() method:

object.addEventListener("click", myScript);
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Technical Details

Bubbles: Yes
Cancelable: Yes
Event type: MouseEvent
Supported
HTML tags:
All exept: <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style>, and <title>

More Examples

Click a <button> to display the date:

<button onclick="getElementById('demo').innerHTML = Date()">What is the time?</button>
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Click a <h3> element to change the text color:

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

<script>
function myFunction() {
  document.getElementById("demo").style.color = "red";
}
</script>
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Another example on how to change the color of an element:

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

<script>
function myFunction(element, color) {
  element.style.color = color;
}
</script>
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Click to copy text from one input field to another:

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

<script>
function myFunction() {
  document.getElementById("field2").value =   document.getElementById("field1").value;
}
</script>
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How to assign an "onclick" event to the window object:

window.onclick = myFunction;

  function myFunction() {
document.getElementsByTagName("BODY")[0].style.backgroundColor = "yellow";
}
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Use onclick to create a dropdown:

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

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

JavaScript Tutorial: JavaScript Events

HTML DOM reference: ondblclick event

HTML DOM reference: onmousedown event

HTML DOM reference: onmouseup event


Browser Support

onclick is a DOM Level 2 (2001) feature.

It is fully supported in all browsers:

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