Dart - Dart Programming Language

Syntax Overview

1var x = 10; or int x = 10;

1returnType functionName(parameters) { }

1class ClassName { }

1// Single line or /* Multi-line */

Code Examples and Tutorials

Learning Dart programming requires hands-on practice with real code examples. Below, you'll find comprehensive code samples that demonstrate fundamental concepts, common programming patterns, and practical implementations. Each example is carefully explained to help you understand not just what the code does, but why it's written that way and how you can adapt it for your own projects.

1void main() {
2    print('Hello, World!');
3}

1var age = 25;
2double price = 19.99;
3String name = 'John';
4bool isActive = true;
5List<int> numbers = [1, 2, 3];
6Map<String, int> scores = {'John': 95};

1int add(int a, int b) {
2    return a + b;
3}
4
5void main() {
6    int result = add(5, 3);
7    print('Sum: $result');
8}

1class Person {
2    String name;
3    int age;
4    
5    Person(this.name, this.age);
6    
7    void display() {
8        print('$name is $age years old');
9    }
10}
11
12void main() {
13    Person person = Person('John', 25);
14    person.display();
15}

1// For loop
2for (int i = 0; i < 10; i++) {
3    print(i);
4}
5
6// For-in loop
7List<int> numbers = [1, 2, 3, 4, 5];
8for (int num in numbers) {
9    print(num);
10}

1int age = 18;
2
3if (age >= 18) {
4    print('Adult');
5} else {
6    print('Minor');
7}

Essential Dart Commands and Features

Understanding the essential commands and functions in Dart is crucial for effective programming. This section provides detailed explanations of the most important commands, functions, and language features you'll use regularly when developing applications with Dart. Each command is explained with its purpose, syntax, and practical usage examples to help you master the language quickly.

1print('Hello');

1void main() { }

1class MyClass { }

1import 'dart:io';

1Future<void> fetchData() async { await ... }

1int add(int a, int b) => a + b;

Learning Dart Programming

Common Use Cases

Dart is widely used across various industries and application domains. Understanding where and how Dart is typically used helps you make informed decisions about when to choose this language for your projects. Below are the most common use cases where Dart excels, along with examples of real-world applications built with this powerful programming language.

Best Practices and Coding Standards

Following best practices is essential for writing professional, maintainable Dart code. These guidelines have been developed by the programming community over years of experience and help ensure your code is readable, efficient, and follows industry standards. Adopting these practices early in your Dart learning journey will make you a better developer and help you write code that others can easily understand and maintain.