check-similarity-ts

Detect duplicate code in a TypeScript project using AST-based similarity detection to locate repeated functions, types, and patterns. This structural analysis identifies refactoring opportunities to consolidate shared logic and reduce code drift.

AST-based code similarity analysis parses TypeScript and JavaScript syntax trees to locate duplicated functions and types. It identifies structural overlaps rather than matching raw text, providing deeper insight into repeated patterns for refactoring.

Yes, you can analyze TSX and JSX files for code duplication. The tool supports codebases written in TS, TSX, JS, and JSX, allowing you to locate repeated functions and types across your entire frontend and backend JavaScript stack.

Configure the duplication threshold using command-line arguments to control sensitivity. Adjusting this threshold filters similarity results, allowing you to focus on high-impact refactoring targets or surface subtle repeated patterns in your codebase.

Yes, experimental type-detection features support deeper type-aware similarity checks. This allows the analysis to match duplicated logic based on TypeScript type signatures, identifying structural duplicates that standard AST parsing might miss.

The best way to refactor duplicate JavaScript functions is to detect them via AST analysis and consolidate shared logic. The tool guides refactoring by locating repeated patterns and parameterizing differences to reduce code drift.