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charCodeAt Method

Updated: March 2009

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

function charCodeAt(index : Number) : String

index

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

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.

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);
}

Date

History

Reason

March 2009

Simplified example.

Content bug fix.

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