JS Editor Formatter

This tool formats JavaScript code to a consistent style using AST-based rules and user-configurable options. It accepts source code, a target language mode (ES, ESNext, TypeScript), and style settings such as indentation, semicolons, and quote choices. The process is deterministic and idempotent, producing the same output for identical inputs. It is suitable for developers, teams enforcing coding standards, and CI pipelines needing reproducible results. Conceptually, the tool parses code into an Abstract Syntax Tree, applies formatting rules, and re-emits source with standardized spacing, line breaks, and punctuation. This preserves program semantics while improving readability and maintainability. Use cases include consolidating contributions from multiple authors, preparing code for publication, and integrating into pre-commit hooks or automated workflows. Core value lies in reducing human bias in formatting decisions and ensuring consistency across a codebase. Unique value comes from fine-grained control over indentation, line length, quote and semicolon preferences, and language feature awareness. Core features include AST-based formatting, language mode awareness, and a set of safe defaults. Typical use cases: standardizing projects before code reviews, preparing code for diff-friendly changes, and enforcing team-wide style during merges.