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JavaScript onclick Event

Definition and Usage

The onclick event occurs when an object gets clicked.

Syntax

onclick="SomeJavaScriptCode"

Parameter Description
SomeJavaScriptCode Required. Specifies a JavaScript to be executed when the event occurs.

Supported by the following HTML tags:

<a>, <address>, <area>, <b>, <bdo>, <big>, <blockquote>, <body>, <button>, <caption>, <cite>, <code>, <dd>, <dfn>, <div>, <dl>, <dt>, <em>, <fieldset>, <form>, <h1> to <h6>, <hr>, <i>, <img>, <input>, <kbd>, <label>, <legend>, <li>, <map>, <object>, <ol>, <p>, <pre>, <samp>, <select>, <small>, <span>, <strong>, <sub>, <sup>, <table>, <tbody>, <td>, <textarea>, <tfoot>, <th>, <thead>, <tr>, <tt>, <ul>, <var>

Supported by the following JavaScript objects:

button, document, checkbox, link, radio, reset, submit


Example

In this example the text in the first input field will be copied to the second input field when a button is clicked:

<html>
<body>
Field1: <input type="text" id="field1" value="Hello World!">
<br />
Field2: <input type="text" id="field2">
<br /><br />
Click the button below to copy the content of Field1 to Field2.
<br />
<button onclick="document.getElementById('field2').value=
document.getElementById('field1').value">Copy Text</button>
</body>
</html>
JavaScript onclick Event Reviewed by 1000sourcecodes on 06:09 Rating: 5
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