Dart Lists

Dart Lists

Dart Lists allow you to work with a collection of objects. They are similar to arrays in other programming languages but can be growable or fixed-length.

Dart Lists

Dart Lists are collections of objects accessible by index. They can hold objects of different types and have methods to manipulate elements.

Create a List

To create a list we can use square brackets and commas to separate the elements. The general syntax to create a list in Dart is as follows:

data_type list_name = [elem1, elem2, … , elemN];

For example

var numbers = [10, 20, 30, 40, 50];

Dart Lists

Access an element

To access an element in the list, we can use the index :

For example, to access and print the first element in the list, we can use the
the following code:

print(numbers[0]);

Create a growable List

To create a growable list, we can use the list List.generate() constructor.

For Example:

var growableList = List.generate(6, (i) => (i + 1) * 3);

Dart Growable List

Add an element

To add an element to the list, we can use the add() method.

For example, to an element to the list,

growableList.add(21);

Add element to Dart List

Remove an element

To remove an element from the list, we can use the following methods

  • remove()
  • removeAt()
  • removeLast()
  • removeWhere()

For example:

To remove element 18 from the list:

growableList.remove(18);

To remove the first element from the list:

growableList.removeAt(0);

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Dart Tutorials

Dart tutorial on this website can be found at:

https://www.testingdocs.com/dart-tutorials-for-beginners/

More information on Dart:

https://dart.dev/

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