airbnb/ts-migrate

Features

• JavaScript to TypeScript Migration - Automates the conversion of existing JavaScript codebases into compiling TypeScript files.
• AST-Based Source Transformations - Provides programmatic modification of source code by replacing matched syntax tree nodes while preserving original formatting.
• Code Transformation Plugin Systems - Ships a system for transforming source code using tree-based logic or text replacements via plugins.
• Code Migration Frameworks - Provides a customizable framework for defining plugin-based transformation rules to automate code changes during migration.
• Language Migration Automation - Automates the conversion of entire codebases from JavaScript to TypeScript while preserving project structure.
• TypeScript Source Transformers - Uses AST manipulation to programmatically transform JavaScript and partial TypeScript files into valid, compiling code.
• AST-Based Refactorers - Programmatically modifies internal syntax trees to apply large-scale refactoring and renders them back to source code.
• JSDoc to TypeScript Converters - Parses documentation comments and converts JSDoc type definitions into native TypeScript annotations.
• Type Conversion - Extracts type information from JSDoc comments and converts them into native TypeScript annotations.
• Automated Error Resolutions - Analyzes TypeScript compiler output to automatically insert type assertions or suppression comments.
• Large-Scale Code Migrations - Performs systematic, project-wide automated rewrites to migrate legacy syntax to TypeScript standards.
• Automated Suppression - Automatically inserts type-ignore comments and assertions to resolve remaining compiler errors and ensure the project compiles.
• Migration Rule Plugins - Employs a modular system of custom rules to automate specific code conversions across a codebase.
• TypeScript Annotation Conversion - Extracts type information from documentation comments and converts them into native TypeScript annotations.
• Typed Error Management - Implements automated systems to clear remaining type errors through assertions and ignore comments.
• TypeScript Compilation Fixes - Provides automated systems for identifying and resolving TypeScript type errors to ensure successful builds.
• Customizable Transformation Rules - Allows defining specific transformation logic and configurations to fit different project requirements.
• Glob Pattern Selectors - Uses wildcard glob patterns to select specific files for bulk migration operations.
• Incremental - Facilitates the gradual conversion of large codebases by targeting specific directories and files via patterns.
• Normalization - Provides automated reorganization of class members and accessibility modifiers to standardize class definitions during migration.
• Framework Integration - Transforms React property types, state, and lifecycle methods into native TypeScript type definitions.
• Transformation Logic Extensions - Enables building custom transformation plugins using text-based tools or AST implementations.
• Syntax Tree Transformers - Modifies syntax trees to reorganize class members and apply accessibility modifiers.
• React TypeScript Migrations - Updates React components and lifecycle methods from JavaScript to native TypeScript type definitions.

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