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|A Tinderbox Reference File : Actions & Rules : Set-based operators : count() operator|
A v4.0.0 function count() counts the number of discrete items in the specified attribute (of set data type).
The attribute argument is evaluated so can use, $attribute(note) or more complex expressions to get data - as long as the result is an attribute of the Set data type.
For example if KeyAttributes for the current note is "Color;Color2;NameFont" then the code
and not surprisingly returns 3. Note that the count is not all unique values for the attribute across the whole TBX - scope is restricted to 'this' note or another nominated note. Specimen usage:
count($KeyAttributes(some other note))
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