Fundamentals of Dart

Topics to be covered

1. Dart Introduction
2. What can you do with Dart ?
3. Dart Installation
4. Dart Pad
5. Language Fundamentals
   • Project 1
   • Project 2
6. OOPs in Dart
7. Advanced Dart Concepts
8. Project 3
9. Must Read Articles / Blogs

Dart Introduction

An open-source, general-purpose programming language developed by Google. designed for building fast and expressive applications across various platforms.

Key Features

• Object-Oriented
• Statically Typed (Variable types are known at compile-time)
• Multi-platform Support: Build web, mobile (Flutter), desktop applications with one language.
• Package Manager: pub.dev
• Null Safety

Dart Installation

Refer to the link below to setup Dart SDK. - Get the Dart SDK

DartPad

Online tool to write and run Dart code. - DartPad

✪ Language Fundamentals

• Variables Official Docs
  • var and dynamic → link
  • late variables
  • final and const → link
• Data Types Official Docs

Dart - Data Types

• Operators (Arithmetic, Comparison, Logical Operators) → link
• Control Flow
  • Conditional Statements (if-else, switch)
  • Loops (for, for each, while, do-while) → link
• ✪ Null Safety → link
• Functions & Parameters
  • Notes along with Code Examples → link
  • Official Documentation - Functions
• 1. Collections
     • Lists, Maps, Sets

Project 1

🤹‍♀️ Task Tracker Console App→ GitHub Link

Create a simple console-based to-do list app using only dart. User should be able to add tasks, view all tasks, Delete Tasks

• Focus Areas:
  • Variables and Data Types
  • Functions
  • Lists
  • Control Flow (if-else)
  • Loops (for/while)

Timelines - Complete this project within 4 days from when you start this course

Project 2

🔠 Word Frequency Counter → GitHub Link

Read a text file and count the occurrences of each word.

• Focus Areas:
  • File I/O
  • Maps
  • Sorting
  • String Manipulations
  • Regex

Timelines - Complete this project within 2 days from when you start this assignment

Object Oriented Programming

• ✪ OOP (Object Oriented Programming) Concepts
  • Classes & Objects
  • Class Modifiers (abstract , sealed , base , final , interface ) link
  • Enums
  • Constructors (Named, Default, Redirecting, Factory)
    • Initializer List
    • usage of super , this inside constructors
  • Abstract Classes
    • Toggle
      1. Abstract methods (unimplemented - only method signature no body) vs concrete methods (implemented)
      2. Why abstract can’t be instantiated
      3. Concrete subclass behaviour when abstract class is extended
      4. Can one abstract extend another abstract class ?
  • Inheritance (extends, implements) & Mixins
  • Polymorphism
• ✪ Error/Exception Handling
  • Try, catch, finally blocks.
  • Throwing and handling exceptions

Advanced Dart Concepts

• ✪ Concurrency
  • Future and async/await → Asynchronous Programming
  • Streams
  • Isolates
• ✪ Unit Testing in Dart
• Generics

✪ Project 3

⏳ Country Information App - API → GitHub Link

Free API ☞ API

• Focus Areas:
  • Asynchronous Programming
  • OOP
  • Dealing with API calls (HTTP)
  • Exception Handling
  • User Input Handling

Timelines - Complete this project within 3 days from when you start this assignment

Must Read Articles/Blogs

Immutable Data Patterns in Dart and Flutter

More to come……