JavaScript: The Definitive Guide, 6th Edition

Name

String.charCodeAt() — get the nth character code from a string

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()