Libraries and Packages in Dart Overview#

Dart’s library system organizes code into reusable components, while packages distribute these libraries with dependencies. This ecosystem enables code sharing, modular architecture, and dependency management through pub.dev.

Key Concepts#

1. Importing Libraries#

• Core Dart libraries
• Third-party imports
• Relative vs absolute paths
• Default import behavior

2. Import Aliases#

• Resolving naming conflicts
• Improving readability
• Syntax and conventions
• Common use cases

3. show and hide Keywords#

• Selective import
• Controlling namespace pollution
• API surface management
• Performance considerations

4. Custom Libraries#

• Library declarations
• Part files
• Export directives
• Organization best practices

5. Pub.dev Packages#

• Finding dependencies
• Version constraints
• Popular package examples
• Dependency management

6. Creating Packages#

• Package structure
• pubspec.yaml configuration
• Documentation standards
• Publishing process