Introduction to Dart

Dart is the client-optimised language behind Flutter — one codebase, every screen.

¶What is Dart?

Dart is a statically-typed language tuned for building user interfaces.

With Flutter, the same Dart code compiles to native iOS, Android, web, and desktop apps.

¶Your first example

Here is Dart saying hello. Read it top to bottom — every line earns its place.

void main() {
  print("Hello, world!");
}

Hello, world!

¶Why learn Dart?

• Powers Flutter for true cross-platform apps.
• Hot reload makes UI iteration instant.
• Familiar, approachable syntax for anyone from a C-family background.

¶Where it is used

• Flutter mobile apps
• Cross-platform UIs
• Web apps
• Desktop apps

¶How this track works

Every topic here has four views, switchable with the tabs at the top of each page:

• Learn — the clear, practical walkthrough you are reading now.
• Deep — every detail: edge cases, the full API, and what is really happening.
• Reference — a scannable, no-fluff lookup for when you already know the shape.
• Cheatsheet — the one-page summary, printable, for quick recall.