extract-function

To extract a TypeScript code block into a typed function, provide the target file path and line range. The tool analyzes inputs and outputs, generates a function with type annotations, and replaces the original block with a call site.

Yes, you can generate test scaffolds when refactoring JavaScript code blocks. The extraction process creates named, typed functions and optionally returns updated code ready for testing with repeated use cases.

Refactoring repetitive code blocks into reusable functions is best handled by extracting the targeted lines into a named function. This process enforces type annotations and documentation, increasing readability and reusability across JavaScript files.

Yes, the function extraction process adds JSDoc and type definitions automatically. When analyzing the selected block, it generates proper TypeScript definitions and JSDoc where applicable alongside the new function call site.

To extract a function from a TypeScript file, you need to provide the target file path and the specific line range of the code block. The tool then handles the type inference, documentation, and call site generation.