Validate JavaScript syntax and structural context without executing the input. Check brackets, strings, script versus module rules, return placement, import and export usage, and duplicate lexical declarations.
Validate JavaScript syntax and structural context without executing the input. Check brackets, strings, script versus module rules, return placement, import and export usage, and duplicate lexical declarations.
Processing is performed locally. Advanced language edge cases may require a full standards-based parser or project-specific toolchain.
Input:
import data from "./data.js"; return data;Output: Run the included example to see a real result generated by this tool.
Paste code, select the intended mode, and validate it without executing the submitted program.
Choose ES module mode so import and export declarations are accepted and checked in module context.
The structural validator reports likely return statements outside detected function bodies.
Bracket, brace, parenthesis, string, and template-literal balance checks run before deeper validation.
The source is compiled only as syntax where supported and is never invoked; structural checks handle module-oriented cases.
| Module | Purpose |
|---|---|
| Structure | Protect strings and comments before scanning. |
| Processing | Apply the selected conversion, parser, validator, viewer, inspector, checker, or generator logic. |
| Reporting | Return output, status, measured size, lines, and practical notes. |