Dart-Fundamentals

Hello World in Dart

Every programming journey starts with Hello World. Let’s write our first Dart program.

The Code

Create a file named hello.dart:

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

Variables and Types in Dart

Dart is a statically, strongly typed language with sound null safety — every variable has a type known at compile time, and the compiler guarantees that a non-nullable variable can never hold null. …

Operators in Dart

Operators are the building blocks of expressions. Dart provides a rich set of operators familiar to anyone with a C-style language background, plus a handful of features that reflect its modern …

Control Flow in Dart

Control flow is how a program decides what to do and how many times to do it. Dart gives you a familiar C-style toolkit — if/else, for, while, switch — but layers modern features on top: arrow-style …

Functions in Dart

Functions are the building blocks of any Dart program. In Dart, functions are first-class objects — they can be assigned to variables, passed as arguments, and returned from other functions. This is a …

I/O Operations in Dart

Input and output are how a program talks to the outside world — printing to the console, reading what a user types, and persisting data to files. In Hello World you met print(), but Dart’s I/O …