BoxSetFind
Return the first element of a Set for which the predicate returns true, or null if no element matches.
Iteration follows the natural order of the underlying variant and stops at the first match. The predicate receives the element value, its 1-based ordinal position, and the Set itself.
Method Signature
BoxSetFind(set=[set], callback=[function:Predicate])Arguments
Argument
Type
Required
Description
Default
set
set
true
The set to search.
callback
function:Predicate
true
Predicate invoked for each element. Receives {@code (value, ordinal, set)}. Iteration stops at the first element for which this returns {@code true}.
Examples
Find the first element that satisfies a predicate
Returns the matching element, or null when nothing matches.
s = [ 1, 2, 3, 4, 5 ].toSet();
found = s.find( ( Any v ) => v > 3 );
writeOutput( found >= 4 ? "yes" : "no" );
Result: yes
Returns null when no element matches
Result: null
Related
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