Learning Dart

dart/high-scores/lib/high_scores.dart

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+class HighScores {
+  List<int> scores = <int>[];
+  HighScores(List<int> s) {
+    scores = s;
+  }
+
+  int latest() => scores.last;
+  int personalBest() => _sorted().first;
+  List<int> personalTopThree() {
+    List<int> wrk = _sorted();
+    if(wrk.length >= 3) {
+      return wrk.sublist(0, 3);
+    } 
+    return wrk;
+  }
+
+  List<int> _sorted() {
+    List<int> wrk = List.of(scores);
+    wrk.sort((e1, e2) => e2.compareTo(e1));
+    return wrk;
+  }
+}