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dart:collection

insert method

void insert(
  1. int index,
  2. E element
)
inherited

This operation is not supported by an unmodifiable list.

Implementation

void insert(int index, E element) {
  throw new UnsupportedError("Cannot add to an unmodifiable list");
}

© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.18.5/dart-collection/UnmodifiableListView/insert.html