Where Is? is a VS Code extension that helps developers quickly locate and understand JavaScript function definitions and their relationships within a codebase.
Key Features
🎯 Precise Function Navigation
Jump to function definitions across your JavaScript codebase
Handle complex function relationships with ease
Support for both local and imported functions
🧠 Smart Code Analysis
Graph-based analysis of function relationships
Automatic detection of function implementations
Context-aware definition lookup
AST-based parsing for accurate results
🛠️ Developer Tools
Rich hover information with function details
Diagnostic warnings for naming conventions
Project-specific activation and configuration
Registry tree caching for faster lookups
Requirements
VS Code version ≥ 1.96.2
Cursor editor version ≥ 0.47.8
Windsurf editor version ≥ 1.94.0
JavaScript files in your workspace
Node.js and npm for development
Configuration
Customize the extension behavior through settings:
Setting
Description
Default
whereIs.enabledProjects
Projects where extension is active
["base-project"]
whereIs.enableHover
Enable hover information
true
whereIs.enableDefinition
Enable go to definition
true
whereIs.enableDiagnostic
Enable naming convention warnings
true
whereIs.enableAutocompletion
Enable function call autocompletion
true
Usage
Open a JavaScript file in an enabled project
Place your cursor on a function call
Use F12 or right-click and select "Go to Definition"
The extension will analyze the code and navigate to the function definition
Known Issues
Currently supports only JavaScript files
Function lookup might be slower for very large codebases
Some complex function relationships might not be detected correctly
Development
Building the Extension
# Install dependencies
npm install
# Start development mode
npm run watch
# Create production build
npm run package
Contributing
Fork the repository
Create your feature branch
Commit your changes
Push to the branch
Create a Pull Request
Project Structure
where-is/
├── src/
│ ├── config/ # Configuration settings and constants
│ ├── constants/ # Constants used throughout the extension
│ ├── disposables/ # Disposable objects for extension lifecycle
│ ├── providers/ # Definition and Hover providers
│ ├── services/ # Core services for function discovery
│ ├── utils/ # Helper utilities and parsers
│ ├── datastructures/ # Graph implementation for call analysis
│ └── extension.ts # Main entry point
├── dist/ # Compiled output
└── package.json # Extension manifest
