Enumerate or map through a list with index and value in Dart

Question

In dart there any equivalent to the common:

enumerate(List) -> Iterator((index, value) => f)
or 
List.enumerate()  -> Iterator((index, value) =>          


        

Answer 1

Building on @Hemanth Raj answer.

To convert it back you could do

List<String> _sample = ['a', 'b', 'c'];
_sample.asMap().values.toList(); 
//returns ['a', 'b', 'c'];

Or if you needed the index for a mapping function you could do this:

_sample
.asMap()
.map((index, str) => MapEntry(index, str + index.toString()))
.values
.toList();
// returns ['a0', 'b1', 'c2']

Answer 2

There is a asMap method which converts the list to a map where the keys are the index and values are the element at index. Please take a look at the docs here.

Example:

List _sample = ['a','b','c'];
_sample.asMap().forEach((index, value) => f);

Hope this helps!