Checks if a sequence contains an item.
// (true)
Enumerable.create(1, 2, '3')
.contains(3);
// (false)
Enumerable.create(11, 22, '33')
.contains(33, 'x, y => x === y');
Checks if a sequence contains an item.
// (true)
Enumerable.create(1, 2, '3')
.contains(3);
// (false)
Enumerable.create(11, 22, '33')
.contains(33, 'x, y => x === y');