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Dart Manual Install

You can also manually install any version of the SDK.

Hello, World!

Create a new file named hello_world.dart with the following content:

void main() {
 print('Hello, World!');

In the terminal, navigate to the directory containing the file hello_world.dart and type the following:

dart hello_world.dart

Hit enter to display Hello, World! in the terminal window.

Http Request


<img id="cats"></img>


import 'dart:html';
/// Stores the image in [blob] in the [ImageElement] of the given [selector].
void setImage(selector, blob) {
 FileReader reader = new FileReader();
 reader.onLoad.listen((fe) {
 ImageElement image = document.querySelector(selector);
 image.src = reader.result;
main() async {
 var url = "";
 // Initiates a request and asynchronously waits for the result.
 var request = await HttpRequest.request(url, responseType: 'blob');
 var blob = request.response;
 setImage("#cats", blob);


Getters and Setters

void main() {
 var cat = new Cat();
 print("Is cat hungry? ${cat.isHungry}"); // Is cat hungry? true
 print("Is cat cuddly? ${cat.isCuddly}"); // Is cat cuddly? false
 print("Feed cat.");
 cat.isHungry = false;
 print("Is cat hungry? ${cat.isHungry}"); // Is cat hungry? false
 print("Is cat cuddly? ${cat.isCuddly}"); // Is cat cuddly? true
class Cat {
 bool _isHungry = true;
 bool get isCuddly => !_isHungry;
bool get isHungry => _isHungry;
 bool set isHungry(bool hungry) => this._isHungry = hungry;


In this page (written and validated by ) you learned about Dart Manual Install . What's Next? If you are interested in completing Dart tutorial, your next topic will be learning about: Dart Asynchronous Programming.

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