Base64Encode()
Converts text to binary data by using Base64 encoding.
The Base64Encode() function has two parameters:
stringToEncode(string): Required. The string to encode using Base64.characterEncoding(string): The character encoding type to use when encoding the string. Accepted values:ASCII,UTF-7,UTF-8,UTF-16, andUTF-32.
To use the function, pass it the string that you want to encode. You can specify the type of character encoding to use.
The example code outputs a Base64-encoded string.