contains method - UnmodifiableSetView class - dart:collection library (original) (raw)

description

bool contains(

1. Object? element )

override

Whether value is in the set.

final characters = <String>{'A', 'B', 'C'};
final containsB = characters.contains('B'); // true
final containsD = characters.contains('D'); // false

Implementation

bool contains(Object? element) => _source.contains(element);