In dart there any equivalent to the common:
enumerate(List) -> Iterator((index, value) => f)
or
List.enumerate() -> Iterator((index, value) => f)
or
List.map() -> Iterator((index, value) => f)
It seems that this is the easiest way but it still seems strange that this functionality wouldn't exist.
Iterable<int>.generate(list.length).forEach( (index) => {
newList.add(list[index], index)
});
There is an asMap method which converts the List to a Map where the keys are the indices and the values are the elements. Please take a look at the documentation for asMap.
Example:
final sample = ['a', 'b', 'c'];
sample.asMap().forEach((index, value) => f(index, value));
If you are using Dart 3, you can alternatively use the indexed property. Please take a look at the documentation for indexed.
Example:
final sample = ['a', 'b', 'c'];
for (final (index, item) in sample.indexed) {
f(index, item);
}