Function: byteLength()
Return the length in bytes of a string, optionally using a given encoding. Allowed encodings include UTF-8, UTF-16, ASCII, CP1252 and ISO-8859-1.
Syntax
byteLength(string, encoding)
| Argument | Type | Description |
|---|---|---|
| string | String | The string to be processed. |
| encoding | String | The character encoding to use. |
Examples
byteLength('ab\u1e09', 'UTF-8')Returns 5 (the length of the string in bytes when using the UTF-8 encoding).
substring("01223236023",6)This expression also returns 5, as the default encoding is UTF-8.