add method - ImmutableListMixin class - dart:html library (original) (raw)

description

void add(

1. E value )

override

Adds value to the end of this list, extending the length by one.

The list must be growable.

final numbers = <int>[1, 2, 3];
numbers.add(4);
print(numbers); // [1, 2, 3, 4]

Implementation

void add(E value) {
  throw new UnsupportedError("Cannot add to immutable List.");
}