JS File Validator

The tool analyzes JavaScript text to detect syntax errors and basic lint cues. It parses the code, builds an abstract syntax tree, and reports exact line and column locations for issues. It focuses on syntax correctness and lightweight, guidance-oriented hints rather than a full rule-set. Conceptually, the workflow tokenizes the input, parses to a structured model, validates according to ECMAScript compatibility assumptions, and generates a structured report that can be consumed by automated systems. It supports single-file validation and batched processing by accepting multiple inputs and returning a per-file result map with error summaries and artifact references.
Beneficiaries include developers, code reviewers, and QA engineers who need fast feedback before integration. A key differentiator is precise error localization with minimal latency, enabling rapid iterations without leaving the editor context. The tool provides a machine-readable report in addition to a concise human view, and supports batch validation for CI pipelines. It gracefully handles incomplete code and common edge cases, returning actionable messages rather than cryptic failures.
Core features include strict syntax validation across supported ES versions, optional module-aware parsing, and deterministic error reporting with line and column numbers. It outputs a consistent schema that can be consumed by build systems, with optional severity levels and fix suggestions. Use cases include local debugging, pre-commit checks, and lightweight validation in continuous integration workflows.