filter method
Returns a new Iterable with all elements that satisfy the
predicate test
.
Example:
[1, 2, 3, 4].filter((n) => n < 3).toList(); // [1,2]
This method is an alias for where.
Implementation
Iterable<T> filter(bool Function(T element) test) {
ArgumentError.checkNotNull(test, 'test');
return where(test);
}