Learn DART with Real Code Examples

Dart allows developers to write fast, maintainable, and expressive code.

It supports both just-in-time (JIT) compilation for development and ahead-of-time (AOT) compilation for production.

Dart combines object-oriented, functional, and reactive programming paradigms.

Object-oriented with classes, mixins, and interfaces

Asynchronous programming with Futures and Streams

Optional static typing with type inference

Functional programming constructs like first-class functions

Comprehensive libraries for I/O, collections, and math

Variables, constants, and type system

Control flow: if, for, while, switch

Functions and first-class functions

Classes, objects, and inheritance

Asynchronous programming with Futures and Streams

bin/ - main entry points for CLI apps

lib/ - shared libraries and code

test/ - unit and integration tests

web/ - web app entry for Flutter web

pubspec.yaml - package configuration

Write Dart code in `.dart` files

Use `dart run` for executing scripts

Use `dart compile` for AOT compilation

Integrate with Flutter for mobile/web apps

Debug using IDE tools or command-line debugger

Beginner: small scripts and console apps

Intermediate: Flutter mobile apps

Advanced: server-side apps and APIs

Expert: high-performance desktop apps and complex architectures

Community: contributing to open-source Dart and Flutter packages

Stronger typing and better tooling than JavaScript

Faster hot reload cycles than native development

Smaller ecosystem than Java or Python

Better performance in Flutter apps than other cross-platform tools

Syntax similar to C-style languages, easy to learn for Java/C# developers

2011 – Dart language announced

2013 – Dart 1.0 released

2017 – Dart 2.0 introduced sound null safety

2018 – Flutter 1.0 release with Dart

2025 – Continuous improvements with Dart 3.x features

Future: represents a value that will be available later

Stream: asynchronous sequence of data

Isolate: independent thread of execution

Pub: Dart package manager

AOT: Ahead-of-Time compilation