What is Dart?

Learn that Dart is a language developed by Google.

What is Dart?

Dart is a modern programming language developed by Google. It is designed for client-side applications: web, server and especially mobile apps with Flutter.

Dart 3 ships null safety, records and pattern matching as standard. This lets you write safer and more readable code.

Dart is strongly typed but also infers types. So writing code is fast, and the compiler catches errors early.

Dart 3 features

Dart 3 is the modern version of the language and uses null safety by default. A variable cannot be null; you must say so explicitly.

The new records feature lets you return multiple values as a single bundle. Pattern matching makes destructuring and matching data easy.

This course uses Dart 3 syntax. Old code may handle null differently; we learn the modern usage.

Exercise Write your first output

Use print to print Hello Dart to the screen.

Show example solution

print("Hello Dart");

Test yourself

Who develops Dart?
- Mozilla
- Microsoft
- Apple
- Google
Show answer

Google — Dart is developed by Google.

Entry point

void ____() { print('Hello'); }

Show answer

void main() { print('Hello'); }

Match the concepts

main

Program entry point
print

Writes output to screen
Dart

Google's language
dart run

Runs the program

Next lesson: Your first program

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