ViewHelper Documentation
v:or
If content is empty use alternative text (can also be LLL:labelname shortcut or LLL:EXT: file paths).
Arguments
content anySimpleType, required
Input to either use, if not empty
alternative anySimpleType, required
Alternative if content is empty, can use LLL: shortcut
arguments anySimpleType, required
Arguments to be replaced in the resulting string
extensionName string, required
UpperCamelCase extension name without vendor prefix