Descendant-or-self?

[ComplexPoint (RobTrew)]

I can collect the values of a given attribute for all the descendants of particular note (with the collect function and the descendants group designator)

What is the best way of prepending the attribute value of the parent note itself to that list ?

(rather as in XPath’s descendant-or-self axis, or simply as in prepending, or cons-ing, a single value to the start of an existing list)

[eastgate]

Just add the value.

$MySet = $MyString; $MySet=$MySet + collect(descendants, $MyString)

The edge case to watch out for is that + has a different meaning as a string operation and as a set or list operation.

[ComplexPoint (RobTrew)]

FWIW a brief JS sketch of using all the XPath axes in Tinderbox, including descendant-or-self, in another thread:

Using evaluate (introduced in TB 8.0.4)

Here FWIW, is a first JS sketch of using the .evaluate() method to batch-fetch values for a given list of attributes from each of the xpath ‘axes’ of the selected note. (The output is a JS array of key:value dictionaries – one such dictionary for each note referenced by the xpath axis in relation to the selected note. The dictionary keys are the names of the requested attributes) XPath axes overlap with the Tinderbox group designators and also add a few additional relationships to the selected…