Checks whether every element of this iterable satisfies test
.
Checks every element in iteration order, and returns false
if any of them make test
return false
, otherwise returns true
.
bool every(bool test(E element)) { int length = this.length; for (int i = 0; i < length; i++) { if (!test(this[i])) return false; if (length != this.length) { throw ConcurrentModificationError(this); } } return true; }
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https://api.dart.dev/stable/2.5.0/dart-collection/ListMixin/every.html