_fromBase64

(As of 3.1.002.10)

Convert a Base64-encoded string to plain text.

Syntax

_fromBase64( string[, bytesperchar])

Parameters

string is a base64-encoded string value to be converted.

bytesperchar is the coding size of the characters in the string parameter. The default is 1 indicating that each string character is to be converted to a single unicode output character. If the source string contains two encoded bytes that represent a single unicode character, then set bytesperchar to 2.

Returned Value

Returns the resulting unencoded string

Example

 var str = "DocOrigin 2020";
 var b64 = _toBase64(str); // "RG9jT3JpZ2luIDIwMjA="
 var txt = _fromBase64(b64); // "DocOrigin 2020"

 var str2 = "保险单号";
 var b64 = _toBase64(str2, 2); // "T92WaVNVU/c="
 var txt = _fromBase64(b64, 2);    // "保险单号"

See Also

_toBase64
_file.toBase64
_file.fromBase64