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Named Filter Run Prefix

2023년 7월 11일 오전 9:08

In Introduced in v5.1.23 the named filter run prefixes were implemented. :cascade, :map and :sort have been added later as shown in the diagrams.

A named filter run prefix can precede any run of a filter expression in place of a shortcut run prefix.

:all:and:cascadev5.2.1:else:except:filter:intersection:mapv5.2.0:or:reduce:sortv5.2.0:thenv5.3.0run

Tip
Compare named filter run prefix :filter with filter Operator which applies a subfilter to every input title, removing the titles that return an empty result from the subfilter

Tip
Compare named filter run prefix :reduce with reduce Operator which is used to used to flatten a list of items down to a single item by repeatedly applying a subfilter

Tip
Within the filter runs prefixed with :reduce, :sort, :map and :filter, the currentTiddler variable is set to the title of the tiddler being processed.
The value of currentTiddler outside the subfilter is available in the variable ..currentTiddler Introduced in v5.2.0

Also see: Interchangeable Filter Run Prefixes