Lists

Part of the Your First App section of Coddy's Flutter journey. Lesson 14 of 32.

A list holds several values in order, inside square brackets:

List<String> colors = ['red', 'green', 'blue'];

List<String> means a list of strings. Each value has a position, called its index, and counting starts at 0: colors[0] is 'red' and colors[2] is 'blue'.

colors.length is how many values the list holds, here 3.

Challenge

Easy

Using the friends list, make the two lines show:

the first friend's name, Ana
3 friends, with the number from friends.length

The Column around them puts one line under the other.

Try it yourself

import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    List<String> friends = ['Ana', 'Ben', 'Chen'];
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Center(
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              Text('First friend'),
              Text('How many?'),
            ],
          ),
        ),
      ),
    );
  }
}