Programming in Dart: Functions & Closures

Jun 21 2022 · Dart 2.16, Flutter, DartPad

Part 2: Learn Anonymous Functions & Closures

11. Use Anonymous Functions

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There are times when you need to provide a function, but you may not need to use that function in other areas of your code. In such a case, you can provide an anonymous function instead.

int modifyScores(List<int> scores, int Function(int, int) processor) {
  var total = 0;
  for (var score in scores) {
    total += processor(score, 2);    
  return total;  
var scores = [56, 85, 34];
var total = modifyScores(scores,
(int a, int b) {

return a * b;
var total = modifyScores(scores, (int a, int b) => a * b );