Introduction to @feature-sliced/eslint-config
@feature-sliced/eslint-config is a comprehensive ESLint configuration package designed to facilitate the implementation of FeatureSliced design principles in JavaScript projects. While it is still in the beta-testing phase and users are advised to proceed with caution, it offers several valuable features that help developers maintain best practices in code organization and structure.
Key Features
This configuration package is built around several core FeatureSliced concepts:
- Isolation and Decomposition: Enforces rules that ensure different parts of an application are well-separated and logically decomposed.
- Public API Control: Helps manage and restrict access to public APIs, ensuring that the module interactions are intentional and controlled.
- Layers and Scopes Management: Governs how different layers and scopes within an application are structured, facilitating better maintainability.
- Naming Adaptability: Supports adaptable naming conventions to accommodate various coding styles and preferences.
Rules and Configuration
@feature-sliced/eslint-config provides a set of specific rules, each with test cases and options for customization:
- Import Order: Ensures imports are organized in a specific order.
- Public API: Manages how modules interact and access external functionality.
- Layers and Slices: Defines and controls the architectural layers and slices within an application.
Getting Started
To begin using @feature-sliced/eslint-config, one must first install ESLint in their project. The package also requires eslint-plugin-import and eslint-plugin-boundaries, which can be installed via npm, yarn, or pnpm. Configuration involves extending @feature-sliced in the ESLint configuration file.
For projects written in TypeScript, additional setup is necessary. This includes configuring the TypeScript parser and resolver to work with ESLint.
Usage
The package supports various import styles, such as aliases, relative, and absolute imports, accommodating different file referencing techniques. It also provides flexibility in naming conventions, supporting kebab-case, PascalCase, camelCase, and snake_case.
For instances where developers need to circumvent some restrictions, there is support for a "dangerous mode" which should be used sparingly.
Customization Options
@feature-sliced/eslint-config allows users to customize their linting rules in several ways:
- Partially apply specific rules without using the main package.
- Experiment with alternative or experimental versions of the core rules for customized use cases.
- Adjust the severity of the rules from errors to warnings as necessary.
- Utilize advanced message processing for specific rule violations for better clarity and context.
Additional Resources
Extensions to this project can be explored in the FAQ section, changelog, and contribution guidelines. The project encourages feedback and participation from the community to help refine the methodology and improve the tool.
In conclusion, @feature-sliced/eslint-config provides a robust framework for maintaining structured and clean code based on FeatureSliced design principles, making it a valuable tool for developers seeking to enhance their project's code quality and organization.