Gain insights into Dart, an object-oriented language crucial for Flutter development. Delve into its fundamentals and prepare to craft high-quality native interfaces on iOS and Android.

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Learn Dart for free with this interactive course. Dart is a clean, simple, class-based, object-oriented language with more structure than JavaScript, the programming language it's heavily based on. However, you can't have a conversation about Dart without mentioning Flutter. 

Flutter is Google's mobile UI framework for crafting high-quality native interfaces on iOS and Android. Flutter applications are written using the Dart programming language, which has helped make Dart a beloved language by the developer community. Before you can start fluttering out Flutter applications, you must learn Dart. This course will help you learn the fundamentals of Dart and start your journey to learning Flutter. Start learning today.

Learn Dart: First Step to Flutter

# Lexical scope

**Lexical scope** is the range of functionality of a variable so that it may only be called from within the block of code in which it is defined.
Dart is a lexically scoped language, which means that the scope of variables is determined statically, simply by the layout of the code.
Each set of curly brackets (`{}`) acquires its own new scope while inheriting from the scope in which it was declared. With lexical scoping, descendant scopes will access the most recently declared variable of the same name.
We know `nestedFunction` is outside the scope of `main();` this was because it was declared in the scope of `outerFunction`.


> You can follow the curly brackets outwards to see if a variable is in scope.



Let’s learn about lexical scoping in Dart.

Introduction

Getting Started with Dart

Data Types and Variables

Operators

Dart's Collection

Control Flow Statements

Exploring Functions

Classes

Where to Go From Here

Scope

Lexical scope