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Iterable<T>.containsAny(Iterable<T>) #41

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merged 1 commit into from Jan 22, 2020
Merged

Iterable<T>.containsAny(Iterable<T>) #41

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9 changes: 9 additions & 0 deletions lib/src/iterable.dart
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Expand Up @@ -172,6 +172,15 @@ extension IterableX<E> on Iterable<E> {
return true;
}

/// Checks if any elements in the specified [collection] are contained in
/// this collection.
bool containsAny(Iterable<E> collection) {
for (var element in collection) {
if (contains(element)) return true;
}
return false;
}

/// Returns true if this collection is structurally equal to the [other]
/// collection.
///
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8 changes: 8 additions & 0 deletions test/iterable_test.dart
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Expand Up @@ -164,6 +164,14 @@ void main() {
expect(list1.contentEquals(list1), true);
});

test('.containsAny()', () {
var list1 = const [1, 2, 3, 4, 5];
var list2 = const [1, 3, 6];

expect(list1.containsAny(list2), true);
expect(list2.containsAny([2, 4, 7]), false);
});

test('.contentEquals()', () {
var list1 = const ['test', 'test', 'tom', 'true'];
var list2 = const ['test', 't', 'te', 'tes'];
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