About the JavaScript Validator Pro

Check JavaScript for syntax errors and common problems.

How to use the JavaScript Validator Pro

1. Paste your code into the input box, or click Load Sample to load an example.
2. Tick the Quick Lint Rules you want: flag console.log(), eval() or alert() usage.
3. Press Validate Syntax.
4. Use Copy (or Download where shown) to keep the result. Clear empties the box.

Tips

• Fix the first error first. Later errors are often side effects of it.
• Avoid eval(), which can create security holes.