| purpose | if the list of input titles is empty then return a list consisting of a single constant string, otherwise return the original titles |
|---|---|
| input | a selection of titles |
| parameter | E=a string |
| output | the original input titles unless empty, in which case return a list with the single entry E |
Learn more about how to use Filters
Introduced in v5.1.20 See Conditional Operators for an overview.