inString | String String to convert. |
language | String Optional. Lowercase, two-letter ISO-639 code. If this parameter is null, the system default is used. |
country | String Optional. Uppercase, two-letter ISO-3166 code. If this parameter is null, the system default is used. |
variant | String Optional. Vendor and browser-specific code. If null, this parameter is ignored. |
value | String Contents of inString, with all lowercase characters converted to uppercase. |