prefer_last

Warns about usage of iterable[length - 1] or iterable.elementAt(length - 1) instead of iterable.last.

Example

BAD:

final a = [1, 2, 3];

a[a.length - 1];           // LINT
a.elementAt(a.length - 1); // LINT

GOOD:

final a = [1, 2, 3];

a.last; // OK