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/Dart 2

operator []= method

void operator []= (int index, E value)

This operation is not supported by an unmodifiable list.

Implementation

void operator []=(int index, E value) {
  throw new UnsupportedError("Cannot modify an unmodifiable list");
}

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-collection/UnmodifiableListView/operator_put.html