charCodeAt Method

Returns an integer representing the Unicode encoding of the character at the specified location in a String object.

function charCodeAt(index : Number) : String

Arguments

• index
  Required. Zero-based index of the desired character. Valid values are between 0 and the length of the string minus 1.

Remarks

The first character in a string is at index 0, the second is at index 1, and so forth.

If there is no character at the specified index, NaN is returned.

Example

The following example illustrates the use of the charCodeAt method.

function charCodeAtTest(n)
{
    var str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    // Get the Unicode value of the character that is at position n.
    var n = str.charCodeAt(n - 1);
    return(n);
}

Requirements

Version 5.5

Applies To:

String Object

See Also

Reference

fromCharCode Method

Change History

Date	History	Reason
March 2009	Simplified example.	Content bug fix.