JavaScript: The Definitive Guide, 5th Edition

Name

String.charCodeAt( ): get the ‘n’th character code from a string — ECMAScript v1

Synopsis

string.charCodeAt(n)

Arguments

n

The index of the character whose encoding is to be returned.

Returns

The Unicode encoding of the nth character within string. This return value is a 16-bit integer between 0 and 65535.

Description

charCodeAt( ) is like charAt( ), except that it returns the character encoding at a specific location, rather than returning a substring that contains the character itself. If n is negative or greater than or equal to the string length, charCodeAt( ) returns NaN.

See String.fromCharCode( ) for a way to create a string from Unicode encodings.

See Also

String.charAt( ), String.fromCharCode( )