JavaScript charCodeAt() Method: String Object


The charCodeAt() returns a number indicating the Unicode value of the character at the given index.


Implemented in JavaScript 1.2




index : An integer between 0 and (length of the string - 1).


In the following web document, charCodeAt() method displays the Unicode value of various characters of a given string.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
<title>JavaScript String object - charCodeAt() method example</title>
<h1 style="color: red">JavaScript String object : charCodeAt() method</h1>
<hr />
<script type="text/javascript">
//This is done to make the following JavaScript code compatible to XHTML. <![CDATA[
var txt="Learn Javascript Easily";
document.write("The Unicode for the first character is: " + txt.charCodeAt(0) + "<br />");
document.write("The Unicode for the seventh character is: " + txt.charCodeAt(7) + "<br />");
document.write("The Unicode for the eleventh character is: " + txt.charCodeAt(10) + "<br />");
document.write("The Unicode for the last character is: " + txt.charCodeAt(22));

View the example in the browser

Supported Browser

Internet Explorer 7 Firefox 3.6 Google Chrome 7 Safari 5.0.1 Opera 10
Yes Yes Yes Yes Yes

See also:

JavaScript Core objects, methods, properties.

Previous: JavaScript charAt() method: String Object
Next: JavaScript fixed() Method: String Object

Test your Programming skills with w3resource's quiz.

Follow us on Facebook and Twitter for latest update.