Dart – AppDividend https://appdividend.com Latest Code Tutorials Fri, 03 Jan 2020 08:34:34 +0000 en-US hourly 1 https://appdividend.com/wp-content/uploads/2017/08/cropped-ApDivi-32x32.png Dart – AppDividend https://appdividend.com 32 32 Dart List Example | Dart Programming List Tutorial https://appdividend.com/2019/03/17/dart-list-example-dart-programming-list-tutorial/ https://appdividend.com/2019/03/17/dart-list-example-dart-programming-list-tutorial/#respond Sun, 17 Mar 2019 14:10:47 +0000 http://localhost/wordpress/?p=5236 Dart List Tutorial With Example

Dart List is the ordered group of objects. The dart: core library provides a List class that enables the creation and manipulation of lists. The very commonly used collection in programming is an array. Dart represents the arrays in the form of List objects. A unique number called the index identifies each element in the List. An index […]

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Dart List Tutorial With Example

Dart List is the ordered group of objects. The dart: core library provides a List class that enables the creation and manipulation of lists. The very commonly used collection in programming is an array. Dart represents the arrays in the form of List objects. A unique number called the index identifies each element in the List. An index starts from zero and extends up to n-1 where n is a total number of items in the List.

Dart List Example

Lists can be classified into two types.

  • Fixed Length List
  • Growable List

Fixed Length List

A fixed-length list’s length cannot change at runtime.

The syntax for creating the fixed-length list is as given below.

var list_name = new List(initial_size)

Let’s see the following example.

// app.dart

void main() {
  var initial_size = 5;
  var app_list = new List(initial_size);
  app_list[0] = 'Krunal';
  app_list[1] = 'Ankit';
  app_list[2] = 'Rushabh';
  app_list[3] = 'Dhaval';
  app_list[4] = 'Nehal';

  print(app_list);
}

Let’s see the output inside the terminal.

Dart List Example | Dart Programming List Tutorial

Growable List

The growable list’s length can change at the run-time.

The syntax for declaring and initializing a growable list is as given below.

var list_name = new List()

Let’s see the following example.

// app.dart

void main() {
  var app_list = [19, 21, 46];
  print(app_list);
}

See the following output.

Dart Programming List Tutorial

We can check the length of the List using the length function.

// app.dart

void main() {
  var app_list = [19, 21, 46];
  print(app_list.length);
}

See the output.

Fixed Length List Example

Dart List Properties

We have seen one List property called length. Some other properties of List are the following.

First

This property returns the first element in the list.

// app.dart

void main() {
  var app_list = [19, 21, 46];
  print(app_list.first);
}

See the output.

Dart List First property

You can find more properties on official documentation.

Finally, Dart List Example is over.

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