How do I reverse a String in Dart?

Question

I have a String, and I would like to reverse it. For example, I am writing an AngularDart filter that reverses a string. It\'s just for demonstration purposes, but it made me wo

Answer 1

There are many ways to reverse a string in Dart, some of them are given below.

Use split and join:

String reverseStringUsingSplit(String input) {
  var chars = input.split('');
  return chars.reversed.join();
}



Use runes:

String reverseStringUsingRunes(String input) {
  var chars = input.runes.toList();

  return String.fromCharCodes(chars.reversed);
}



Use codeUnits:

String reverseStringUsingCodeUnits(String input) {
  return String.fromCharCodes(input.codeUnits.reversed);
}

You can simply use all methods like this

void main() {
  var coflutter = 'Coflutter';

  print(reverseStringUsingSplit(coflutter));
  print(reverseStringUsingRunes(coflutter));
  print(reverseStringUsingCodeUnits(coflutter));
}

The output of all 3 methods will be

rettulfoC
rettulfoC
rettulfoC

Ref: https://coflutter.com/dart-how-to-reverse-a-string/