JavaScript charCodeAt() Method
 JavaScript String Object
Definition and Usage
The charCodeAt() method returns the Unicode of the character at the specified index in a
string. The index of the first character is 0, and the index of the last
character in a string called "txt", is txt.length-1.
Syntax
| Parameter |
Description |
| index |
Required. An integer between 0 and string.length-1 |
Browser Support
The charCodeAt() method is supported in all major browsers.
Example
Example
Return the Unicode of the first and last character
in a string:
<script type="text/javascript">
var str = "Hello world!";
document.write("First character: " + str.charCodeAt(0) + "<br />");
document.write("Last character: " + str.charCodeAt(str.length-1));
</script>
|
The output of the code above will be:
First character: 72
Last character: 33
|
Try it yourself »
|
JavaScript String Object
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