JSDoc - Detailed Review
Developer Tools
JSDoc - Product Overview
Introduction to JSDoc
JSDoc is a widely used documentation tool in the JavaScript ecosystem, created in 1999. It serves as a standardized method for documenting JavaScript code, similar to tools like JavaDoc for Java or PyDoc for Python.Primary Function
The primary function of JSDoc is to enable developers to annotate their JavaScript code with comments that can be parsed and transformed into detailed documentation. This documentation can include function descriptions, parameter types, return values, and error cases, making the code more readable and maintainable.Target Audience
JSDoc is targeted at professional JavaScript developers who need to maintain clear, comprehensive, and scalable codebases. It is particularly useful in team environments where multiple developers collaborate on large projects, as it helps in reducing the learning curve for new team members and streamlining the code review process.Key Features
Documentation Generation
JSDoc allows developers to generate automatic and good-looking documentation from their code comments. This can be converted into an HTML documentation site using tools like the JSDoc 3 generator.Improved Code Readability
By adding structured comments to functions, variables, and classes, JSDoc enhances the readability of the code. This is especially beneficial in complex codebases where understanding each piece of code can be challenging.Type Inference and Integration
JSDoc can infer simple types for parameters, return values, and class variables. It also integrates well with development environments like VS Code and JetBrains, providing type safety and intellisense for plain JavaScript. This allows developers to use JavaScript features without the need for TypeScript, while still benefiting from type checking and auto-completion.IDE Integration
JSDoc comments are recognized by popular IDEs and text editors, providing in-editor documentation when developers hover over specific fields or methods. This makes it easier to detect bugs and maintain the codebase.Structured Coding
Using JSDoc encourages developers to think in a more structured way, relieving the mental load of remembering various details while coding. It supplements good coding practices by providing clear and consistent documentation. In summary, JSDoc is an essential tool for JavaScript developers aiming to create well-documented, maintainable, and scalable codebases, while also improving code readability and facilitating better collaboration within development teams. JSDoc - User Interface and Experience
Integration with Development Tools
JSDoc is primarily used within development environments such as text editors and Integrated Development Environments (IDEs). For example, Visual Studio Code (VSCode) has built-in support for JSDoc, which makes the documentation process seamless and intuitive.
Ease of Use
Using JSDoc is relatively straightforward. Developers add special comments to their JavaScript code, starting with `/**` and ending with `*/`. These comments include tags like `@param`, `@returns`, and `@module` to describe the code’s functionality. This process is integrated into the coding workflow, making it easy to document code as it is written.
User Experience
The user experience with JSDoc is enhanced by several features:
- IntelliSense and Auto-Completion: Many IDEs, including VSCode, provide IntelliSense for JSDoc tags and syntax, helping developers write comments more efficiently and with fewer errors.
- Hover Preview: When developers hover over a symbol in their code, the IDE displays a preview of the JSDoc comments, providing immediate access to documentation without needing to navigate to the symbol’s definition.
- Signature Help: The IDE shows signature information for functions and methods, including parameters and return types, directly from the JSDoc comments.
- Error Checking: IDEs can check JSDoc comments for errors and provide warnings and suggestions for improvement, ensuring that the documentation is accurate and consistent.
Documentation Generation
One of the significant benefits of JSDoc is its ability to generate HTML documentation automatically from the comments. This feature allows developers to create comprehensive documentation sites for their projects, which can include detailed descriptions of functions, modules, and other code elements.
Best Practices
To maximize the user experience with JSDoc, developers are encouraged to document their code as they write it, be descriptive but concise, and use Markdown for richer formatting. Leveraging plugins and using tags like `@alias`, `@tutorial`, and `@link` can also enhance the documentation.
In summary, JSDoc’s user interface is seamlessly integrated into the development process, making it easy to use and enhancing the overall user experience by providing immediate access to documentation and automated error checking.
JSDoc - Key Features and Functionality
JSDoc Overview
JSDoc is a powerful tool for generating and managing documentation for JavaScript code, offering several key features and functionalities that enhance code maintainability, readability, and collaboration.Documentation Generation
JSDoc reads specially-formatted comments in your JavaScript code and generates a static HTML documentation site. You can add JSDoc comments by starting with `/**` and using specific tags to provide metadata about your code. For example, you can describe functions, classes, and variables, define parameter types and return values, and indicate default or optional parameters.Tags and Metadata
JSDoc supports a wide variety of tags that help describe different aspects of your code. Common tags include:Function Parameter
Function Return Value
Class and Inheritance
Module and Namespace
Visibility
Integration with IDEs
JSDoc integrates seamlessly with popular Integrated Development Environments (IDEs) like Visual Studio Code and JetBrains. This integration allows developers to see documentation in-editor when hovering over specific fields or methods, enhancing code comprehension and reducing errors.AI-Generated Documentation
Some tools, such as the JS Assistant for Visual Studio Code, use AI to generate JSDoc comments. This feature provides pre-filled templates that you can refine, accelerating the documentation process. However, it’s important to note that while AI can generate comments, it may struggle with providing the external context or the “why” behind the code.Customization and Configuration
JSDoc allows you to customize the appearance and behavior of the generated documentation using configuration files and templates. You can create a `jsdoc.json` file to specify input file patterns, output directories, and other options. Additionally, you can use custom templates from the community to change the appearance of the generated documentation.Plugins and Extensions
JSDoc can be extended with plugins to add new features or improve compatibility with modern JavaScript syntax. Popular plugins include `jsdoc-babel` for parsing modern JavaScript syntax, `jsdoc-eslint` for integrating with ESLint to enforce documentation standards, and `jsdoc-plugin-markdown` for generating Markdown documentation instead of HTML.Automation and Linting
To ensure documentation is always up to date, you can integrate JSDoc into your build process. This way, documentation is automatically generated whenever you build your project. Tools like `jsdoc-eslint` can also be used to enforce JSDoc standards and conventions across your codebase, helping you catch documentation issues early.Conclusion
In summary, JSDoc is a versatile tool that enhances code documentation through its extensive tagging system, integration with IDEs, and customization options. While AI can assist in generating documentation, it is most effective when used in conjunction with manual refinement to ensure comprehensive and accurate documentation. JSDoc - Performance and Accuracy
Performance
JSDoc is primarily a markup language for documenting JavaScript code, and it does not inherently impact the performance of the code itself. Instead, it enhances the development process by providing better code readability and maintainability. Here are a few performance-related aspects:
Development Speed
JSDoc can speed up the development process by providing clear documentation and intellisense capabilities within IDEs like Visual Studio Code, IntelliJ IDEA, and NetBeans. This can reduce the time spent on understanding and maintaining code.
No Compilation Step
Unlike TypeScript, JSDoc does not require a compilation step, which can simplify and speed up the development workflow. This is because JSDoc comments are just part of the JavaScript code and do not need to be transpiled.
Accuracy
The accuracy of JSDoc is more related to its ability to provide clear and consistent documentation rather than executing code.
Documentation Quality
JSDoc helps in creating high-quality documentation by allowing developers to specify types, parameters, and return values for functions. This improves the accuracy of code understanding and reduces errors caused by misinterpretation of function intentions.
Type Checking
While JSDoc does not enforce strong static typing like TypeScript, it can still help in documenting the expected types of parameters and return values. However, it relies on the developer to ensure these types are correctly used, as it does not catch type errors at compile time.
Limitations and Areas for Improvement
Here are some limitations and areas where JSDoc could be improved:
Lack of Strong Static Typing
Unlike TypeScript, JSDoc does not enforce type checking at compile time. This means that type errors may only be caught during runtime, which can lead to issues in production if not thoroughly tested.
Manual Enforcement
The accuracy and quality of documentation depend on the developer’s diligence in maintaining and updating the JSDoc comments. If these comments are not kept up-to-date, they can become misleading or inaccurate.
IDE Integration
While JSDoc integrates well with many IDEs, its effectiveness can vary depending on the IDE’s support and the specific use case. For example, some IDE features may not work seamlessly with certain types of code or project structures.
Conclusion
In summary, JSDoc is a valuable tool for improving code readability, maintainability, and documentation accuracy. However, it does not replace the need for strong static typing and compile-time type checking, which TypeScript provides. By using JSDoc effectively, developers can enhance their development workflow and code quality, but they must be aware of its limitations and ensure consistent maintenance of the documentation.
JSDoc - Pricing and Plans
Free and Open-Source
JSDoc is completely free and open-source. You can install and use it without any cost.
Installation and Usage
You can install JSDoc globally or locally in your project’s node_modules folder using npm. The commands for installation are straightforward:
npm install -g jsdoc # Global installation
npm install --save-dev jsdoc # Local installation
After installation, you can generate documentation for your JavaScript files using the jsdoc command.
Features
JSDoc provides a range of features to document your JavaScript code, including support for documenting functions, parameters, variables, constants, modules, and more. It allows you to use various tags such as @param, @returns, @module, @member, and others to create comprehensive documentation.
No Subscription or Plans
Since JSDoc is free and open-source, there are no subscription plans or different tiers to consider. It is available for anyone to use without any financial commitment.
Summary
In summary, JSDoc is a free tool with no pricing structure or plans, making it accessible to all developers who need to generate documentation for their JavaScript projects.
JSDoc - Integration and Compatibility
Integration with Other Tools
TypeScript
JSDoc is fully compatible with TypeScript. You can use TypeScript-flavored JSDoc comments in your TypeScript code, and tools like TypeScript can check plain JavaScript files using allowJs and checkJs in the tsconfig.json file.
ESLint
JSDoc works well with ESLint, a JavaScript linter. There are specific ESLint plugins, such as eslint-plugin-jsdoc, that enforce JSDoc comment standards and ensure consistency in your documentation. These plugins can also leverage JSDoc type hints to improve code analysis.
Markdown and Documentation Tools
JSDoc can generate documentation in Markdown format using plugins like jsdoc-to-markdown and jsdoc-md. This allows you to convert JSDoc comments into Markdown documentation, which can be further processed or integrated into other documentation tools.
Type Checking and Validation
Tools like bycontract and eslint-plugin-typelint can validate structures and types defined in JSDoc comments. Additionally, tern can check type usage against JSDoc comments, enhancing the type safety of your JavaScript code.
Compatibility Across Platforms
Node.js
JSDoc is designed to run on Node.js and is compatible with Node.js versions 4.0.0 and later. It no longer supports Mozilla Rhino, so you need to use Node.js to run JSDoc.
JavaScript and JSX Files
JSDoc can parse ECMAScript 2015 code, including native classes and modules, as well as JSX files. This makes it versatile for documenting modern JavaScript projects.
Cross-Environment Compatibility
Since JSDoc generates HTML documentation, the output is compatible across various devices and browsers. This ensures that your documentation is accessible regardless of the environment in which it is viewed.
Visual and Parsing Tools
Diagrams and Visualizations
Tools like jsdoc2diagram can create visual diagrams from your project’s JSDoc comments, helping in visualizing the structure of your codebase.
Parsing and Stringifying
Libraries such as comment-parser and @es-joy/jsdoccomment provide JSDoc-like parsing and stringifying capabilities, making it easier to integrate JSDoc comments into other tools and workflows.
Conclusion
In summary, JSDoc integrates well with a range of developer tools, including TypeScript, ESLint, and Markdown processors, and is compatible with modern JavaScript features and Node.js environments. This makes it a versatile and powerful tool for documenting JavaScript projects.
JSDoc - Customer Support and Resources
Support Channels
- You can seek help through the JSDoc Users mailing list, where you can post questions and receive answers from the community.
- Joining the JSDoc Slack channel provides another avenue for real-time support and interaction with other users and developers.
- For specific issues or questions, you can post on Stack Overflow using the `jsdoc` tag to get help from a broader developer community.
Documentation and Guides
- The official JSDoc website offers comprehensive documentation, including a quick start guide, tutorials, and detailed information on using JSDoc tags and command-line arguments. This resource covers topics such as configuring JSDoc, using plugins, and including tutorials in your API documentation.
Community Contributions and Resources
- The JSDoc project on GitHub is open for contributions, and you can participate in the development and documentation of JSDoc. This includes contributing to the JSDoc documentation project as well.
- There are various community-created templates and tools available to help customize and enhance your documentation. Examples include templates like DocStrap, minami, and docdash, among others.
Additional Tools and Plugins
- JSDoc supports a range of plugins that can extend its functionality. For instance, you can enable Markdown support using the Markdown plugin, or use tools like `jsdoc2diagram` to create visual diagrams from your project’s JSDoc comments.
Learning Resources
- For those looking to learn more about JSDoc, there are resources such as the official JSDoc site, TypeScript docs on JSDoc, and Closure’s reference on JSDoc tag and type usage. These resources help in learning how to use JSDoc effectively with different types of JavaScript modules and projects.
By leveraging these support options and resources, you can ensure that you are well-equipped to use JSDoc efficiently and effectively in your development projects.
JSDoc - Pros and Cons
Advantages of JSDoc
JSDoc offers several significant advantages that make it a valuable tool for developers:Time and Efficiency
JSDoc saves developers a lot of time by reducing the number of bugs and making documentation easier and more automatic. It integrates well with IDEs like IntelliJ, Visual Studio, and VSCode, which helps in detecting bugs more easily and provides features like IntelliSense, hover previews, and signature help.Documentation Quality
JSDoc enables the creation of automatic, good-looking, and comprehensive documentation directly from the code comments. This makes the code more readable and easier to maintain for both the developer and other team members.Integration and Compatibility
JSDoc comments are just JavaScript comments, making them compatible with any JavaScript codebase regardless of the language version. This flexibility means you can add JSDoc to existing projects without needing a compiler or additional build steps, unlike TypeScript.Structured Coding
Using JSDoc encourages developers to think in a more structured way, which can improve the overall quality of the code. It helps in documenting functions, parameters, and return types, making the codebase more maintainable and scalable.Meta Documentation
JSDoc helps in creating meta documentation that explains how different parts of the codebase interact, which is particularly useful for large projects or when handing over code to other developers.Rich Formatting
JSDoc supports Markdown within comments, allowing for richer formatting options such as lists, code blocks, and links, which enhances the readability and usefulness of the documentation.Disadvantages of JSDoc
While JSDoc offers many benefits, there are some drawbacks to consider:Lack of Strong Static Typing
Unlike TypeScript, JSDoc does not enforce strong static typing. The type annotations in JSDoc are not checked at compile time, which can lead to type-related errors that might not be caught until runtime.No Type Inference
JSDoc does not have the ability to infer types from values, which means developers need to explicitly annotate types, potentially making the codebase more verbose compared to TypeScript.No Transpilation
JSDoc does not offer transpilation features, meaning it cannot adopt future JavaScript features or polyfill for older browsers, which is a capability provided by TypeScript.Additional Documentation Effort
While JSDoc simplifies the documentation process, it still requires developers to write and maintain these comments. This can add an initial overhead, although it pays off in the long run with better code quality and maintainability.In summary, JSDoc is a powerful tool for documenting JavaScript code, offering significant advantages in terms of time savings, documentation quality, and integration with development tools. However, it lacks the strong static typing and transpilation features that TypeScript provides.
JSDoc - Comparison with Competitors
When Comparing JSDoc with Other Documentation Generators
Community and Ecosystem
- JSDoc: JSDoc is one of the most established documentation generators, boasting a large community, extensive resources, and numerous plugins available. This makes it a reliable choice with a wide support base.
- TypeDoc: TypeDoc, while growing in community support, is particularly popular among TypeScript developers. It focuses on improving TypeScript documentation practices and supports TypeScript-specific features like interfaces and type aliases.
- ESDoc: ESDoc has a smaller but growing community, especially among modern JavaScript developers. It is known for its simplicity and ease of use.
- documentation.js: This tool has a growing community with active contributions, making it easier to find resources and plugins. It supports ES6 syntax and generates documentation in various formats.
Ease of Use
- JSDoc: JSDoc is relatively easy to use, especially for those familiar with its syntax. However, it may require additional configuration for advanced features.
- TypeDoc: TypeDoc is easy to set up for TypeScript projects, leveraging TypeScript’s existing structure to generate documentation with minimal configuration.
- ESDoc: ESDoc requires some familiarity with ES6 features but offers a simple setup for modern JavaScript projects.
- documentation.js: This tool has a user-friendly setup with straightforward configuration, making it accessible for developers of all skill levels.
Unique Features
- JSDoc: JSDoc supports a wide range of plugins and has extensive customization options, making it highly flexible. However, it may not be as streamlined for TypeScript projects as TypeDoc is.
- TypeDoc: TypeDoc’s strength lies in its support for TypeScript-specific features, making it a go-to choice for TypeScript projects. It generates clean and modern documentation output.
- ESDoc: ESDoc is praised for its simplicity and ease of use, although it has limited customization options compared to JSDoc.
- documentation.js: This tool supports ES6 syntax and generates documentation in various formats, but it has limited community support compared to JSDoc and TypeDoc.
Potential Alternatives
- YUIDoc: Originally developed by Yahoo, YUIDoc provides clean and organized documentation output with support for custom themes. However, it has limited flexibility compared to JSDoc.
- Dox: Dox is a flexible documentation tool that supports various output formats and easy integration into build processes. It has limited community support but offers a lot of configuration options.
- Docusaurus: Docusaurus is ideal for creating documentation websites with a modern and responsive design. However, it has limited support for generating API documentation from code comments.
- Mintlify: While not a traditional documentation generator, Mintlify is an AI-driven tool that can automatically generate documentation as you write code. It is particularly useful for those who find manual documentation tedious.
Conclusion
In summary, JSDoc stands out for its extensive community support and flexibility, but TypeDoc is a better choice for TypeScript projects due to its native support. ESDoc and documentation.js offer simplicity and ease of use, making them suitable for different project needs. Depending on your specific requirements, such as TypeScript support or ease of setup, one of these alternatives might be a better fit.
JSDoc - Frequently Asked Questions
Here are some frequently asked questions about JSDoc, along with detailed responses to each:
What is JSDoc and how does it benefit developers?
JSDoc is a markup language used to annotate JavaScript source code files. It helps in generating documentation automatically and improves code readability and maintainability. By using JSDoc, developers can document their code without leaving the code editor, making it easier to detect bugs and maintain the codebase. It also integrates well with IDEs like Visual Studio Code and IntelliJ, providing features such as auto-completion and type checking.How do I document classes and constructors with JSDoc?
Documenting ES2015 (ES6) classes and their associated parts, such as constructors and methods, is well-supported in JSDoc. You can use tags like `@class`, `@constructor`, and `@method` to document these elements. However, documenting a class implementation purely with JSDoc can be complex, and it is often recommended to use a `.ts` file for such cases. For example, you can document a class constructor using the `@constructor` tag and describe its parameters and return types.Can I use generics with JSDoc?
Yes, you can use generics with JSDoc. To accept generics, you use the `@template` tag followed by the generic type name. For instance, you can declare a generic type `T` and then reuse it in your function parameters and return types. Here is an example of a function that uses generics to remove a `name` property from an object: “`javascript /** * Takes any object with a name prop and removes it * @template T * @param {T & {name?: string}} inputObj * @returns {OmitHow do I handle non-null assertions in JSDoc?
In JSDoc, you cannot use the non-null assertion operator (`!`) directly, as it is not yet supported. However, you can achieve similar results using manual type assertions. For example, if you have a variable that could be null but you are certain it is not, you can use a type assertion to tell TypeScript that the variable is not null: “`javascript const myElement = document.querySelector(‘.my-class’); /** @type {HTMLElement} */ (myElement).setAttribute(‘data-greeting’, ‘hello’); “` This method avoids disabling strict null checks while ensuring your code remains concise.Can I extend interfaces using JSDoc?
Yes, you can extend interfaces using JSDoc. You can use the `@interface` tag to define an interface and then extend it using the `@extends` tag. Here is an example: “`javascript /** * @interface Person * @property {string} name * @property {number} age */ /** * @interface Employee * @extends {Person} * @property {string} department */ “` This allows you to build upon existing interfaces and create more specific types.How does JSDoc support type safety in JavaScript?
JSDoc supports type safety in JavaScript by allowing you to annotate your code with type information. This can include function parameters, return types, and variable types. When used with an IDE like Visual Studio Code, JSDoc annotations enable features such as type checking, auto-completion, and error warnings, making your code more maintainable and less prone to bugs. For example, you can document a function’s parameters and return type to ensure that the correct types are used: “`javascript /** * @param {string} name * @param {number} age * @returns {void} */ function greet(name, age) { console.log(`Hello, ${name} You are ${age} years old.`); } “` This helps in catching type-related errors early and improves the overall quality of your code.Can I use tuple types and literal types with JSDoc?
Yes, you can use tuple types and literal types with JSDoc. Tuple types allow you to specify an array with a fixed number of elements, each with a specific type. Literal types allow you to specify exact values that a variable can take. Here is an example of using a tuple type: “`javascript /** * @param {[string, number]} tuple * @returns {void} */ function processTuple(tuple) { const [name, age] = tuple; console.log(`Name: ${name}, Age: ${age}`); } “` And here is an example of using a literal type: “`javascript /** * @type {‘yes’ | ‘no’} */ let answer = ‘yes’; “` These types help in making your code more precise and self-documenting.How do I import external or exported types directly in JSDoc?
You can import external or exported types directly in JSDoc by using the `@typedef` tag along with the `@import` tag or by referencing external modules. For example, if you have a type defined in another file, you can import it: “`javascript /** * @typedef {import(‘./types’).MyType} MyType */ “` This allows you to reuse types across different files and maintain consistency in your type annotations.What are some common tags used in JSDoc?
Common tags used in JSDoc include `@param` for documenting function parameters, `@returns` for documenting return types, `@class` and `@constructor` for documenting classes, `@method` for documenting methods, and `@template` for using generics. Here is an example using some of these tags: “`javascript /** * @class MyClass * @description A simple class example. */ class MyClass { /** * @constructor * @param {string} name */ constructor(name) { this.name = name; } /** * @method greet * @param {number} age * @returns {void} */ greet(age) { console.log(`Hello, ${this.name} You are ${age} years old.`); } } “` These tags help in generating clear and useful documentation for your code.How does JSDoc integrate with IDEs like Visual Studio Code?
JSDoc integrates well with IDEs like Visual Studio Code by providing features such as auto-completion, type checking, and error warnings. When you annotate your code with JSDoc comments, the IDE can use this information to offer better code completion suggestions, highlight type errors, and provide tooltips with type information. This integration makes it easier to write and maintain high-quality, type-safe JavaScript code.What kind of documentation does JSDoc generate?
JSDoc generates HTML documentation based on the annotations in your code. This documentation includes details about functions, classes, methods, parameters, return types, and other elements that you have annotated. The generated documentation is automatically updated as you modify your code, ensuring that it remains accurate and up-to-date. Additionally, JSDoc can be configured to generate documentation in various formats and styles. JSDoc - Conclusion and Recommendation
Final Assessment of JSDoc
JSDoc is a valuable tool in the Developer Tools category, particularly for JavaScript developers, that offers several significant benefits.Benefits of Using JSDoc
- Improved Code Readability: JSDoc enhances the readability of your code by adding comments that explain the purpose and functionality of functions, variables, and classes. This is especially useful in complex codebases, making it easier for developers to comprehend the code.
- Facilitates Code Maintenance: Well-commented code using JSDoc makes it easier to debug, maintain, and improve the codebase. This is crucial in large projects with multiple developers, as it ensures effective collaboration.
- Automatic Documentation Generation: JSDoc allows you to generate detailed HTML documentation from your comments. This feature is invaluable for creating API documentation, user guides, and other technical documentation.
- Type Safety: JSDoc helps infer types in JavaScript projects, which improves code maintainability, speeds up refactoring, and reduces debugging time. It integrates well with tools like VS Code to provide rich intellisense.
- Integration with IDEs: JSDoc works seamlessly with popular IDEs and text editors, such as Visual Studio Code, IntelliJ, and Sublime Text. This integration provides in-editor documentation and warnings, making development more efficient.
Who Would Benefit Most
- JavaScript and TypeScript Developers: Developers working on JavaScript or TypeScript projects can significantly benefit from using JSDoc. It helps in documenting code, providing type safety, and generating automatic documentation.
- Large Project Teams: Teams working on large and complex projects will find JSDoc particularly useful. It enhances collaboration by making the codebase more understandable and maintainable.
- Beginner Developers: New developers can benefit from the clear and structured documentation provided by JSDoc, reducing the learning curve when joining a new project.
Overall Recommendation
JSDoc is a highly recommended tool for any JavaScript or TypeScript developer looking to improve the readability, maintainability, and documentation of their code. Here are some key points to consider:- Documentation as You Code: Make documenting your code a part of your development process to ensure your documentation stays up-to-date.
- Be Descriptive but Concise: Provide clear and succinct explanations in your comments to avoid overly verbose descriptions.
- Use Markdown for Formatting: Utilize Markdown within JSDoc comments for richer formatting options like lists, code blocks, and links.
- Leverage IDE Integrations: Take full advantage of JSDoc’s integration with your IDE to get real-time feedback and documentation.