Operator Scope of Action:
Operator First Added:
Returns Boolean true if the current note is among the first N children of item. If N is missing, a value of 1 is assumed. The item parameter must be quoted unless an attribute reference. Ways to define item.
Both arguments are evaluated and can be a literal string/number, an attribute value or an action code expression evaluating to that same.
In the query creation pop-ups of agent and Find dialogs this function is listed as "fist inside".
This replaces the legacy #first query operator. first() also has a logical opposite in last().