Performs Base64 decoding of a field. The decoded value is
subsequently decoded as binary representation of a string
according to the
charset
parameter. To work with actual binary data, use
ISO-8859-1
character set.
Parameter | Type | Required | Default Value | Description |
---|---|---|---|---|
as | string | optional[a] | _base64Decode | Name of the field in which to store the decoded value. |
charset | string | optional[a] | UTF-8 | The character set to use when transforming bytes to string. |
Valid Values | ||||
ISO-8859-1 | ||||
UTF-16BE | ||||
UTF-16LE | ||||
UTF-8 | ||||
field [b] | string | required | The field on which to decode Base64 values. | |
[a] Optional parameters use their default value unless explicitly set. |
Behavior on Invalid Encoding
An input field that does not contain a valid Base64 encoding may result in the following behavior:
Characters outside the base encoding alphabet are ignored.
If the base encoding is invalid, the output field is not created.
When decoding to a code point that is invalid with respect to the selected charset, the invalid code point is replaced with a placeholder character.
base64Decode()
Examples
Click
next to an example below to get the full details.Perform Base64 Decoding of a Field
Perform Base64 decoding of a field using base64Decode()
function