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- Check email-client-specific HTML attributes
- Inspect the number of known attributes
- Iterate through the known attributes
- Distinguish known attributes from application-specific ones
Idea
This package aims to have the most excessive list of all legit attribute names that can be put into HTML. Currently we have a list of 702 attribute names.
This includes deprecated attributes, Microsoft-proprietary-ones that email templates use (like mso-line-height-rule) and other-ones you’ve probably never seen before.
API — allHtmlAttribs
Imported it like this:
import { allHtmlAttribs } from "html-all-known-attributes";
allHtmlAttribs is a Set of 702 strings — all HTML attribute names known to the Humanity.
Sets are more performant than arrays but the API is slightly different, for example, Array.prototype.includes() equivalent is Set.prototype.has().