Programming in Dart: Functions & Closures

Jun 21 2022 · Dart 2.16, Flutter, DartPad

Part 2: Learn Anonymous Functions & Closures

13. Challenge: Write an Anonymous Method

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Previous episode: 12. Map & Filter Collections Next episode: 14. Create a Closure

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By now, you should feel comfortable writing anonymous methods so why not practice with a challenge? In your challenge, I want you to create a list of scores of forty three, eighty six, ninety nine, and three. Put those scores in a list.

  var numbers = [43, 86, 99, 3];
var even = numbers.firstWhere();
var even = numbers.firstWhere((item) {

var even = numbers.firstWhere((item) {
    if (item % 2 == 0) {
        return true;
    } else {
        return false;
var even = numbers.firstWhere((item) {
    return (item % 2 == 0);
var even = numbers.firstWhere((item) => item % 2 == 0);