Are there any Ruby scripts or JavaScript libraries available for validating the correct format of HTML code?

I've attempted to scrape HTML from a URL using '.errors' in Nokogiri, but it's not working with the following example:

<table>
    <td></td>
</table>

I'm not sure why it's returning 'TRUE' as I believe it is not well-formed. The correct format should be like this:

<table>
    <tr>
        <td></td>
    </tr>
</table>

Answer №1

Nokogiri solely checks if your document adheres to XML standards, but it does not verify against W3C standards.

To ensure the correctness of your HTML tags' positioning, consider using the w3c_validators gem available at this link.

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