Returns the position of the last match pattern
in this string, searching backward starting at start
, inclusive:
var string = 'Dartisans'; string.lastIndexOf('a'); // 6 string.lastIndexOf(new RegExp(r'a(r|n)')); // 6
Returns -1 if pattern
could not be found in this string.
string.lastIndexOf(new RegExp(r'DART')); // -1
The start
must be non-negative and not greater than length.
int lastIndexOf(Pattern pattern, [int start]);
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-core/String/lastIndexOf.html