Returns the last index of element
in this list.
Searches the list backwards from index start
to 0.
The first time an object o
is encountered so that o == element
, the index of o
is returned.
List<String> notes = ['do', 're', 'mi', 're']; notes.lastIndexOf('re', 2); // 1
If start
is not provided, this method searches from the end of the list./Returns
notes.lastIndexOf('re'); // 3
Returns -1 if element
is not found.
notes.lastIndexOf('fa'); // -1
int lastIndexOf(Object element, [int start]) { if (start == null || start >= this.length) start = this.length - 1; for (int i = start; i >= 0; i--) { if (this[i] == element) return i; } return -1; }
© 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/ListMixin/lastIndexOf.html