[zekenie]

Not the same but this gives me an idea… what if there was a map reduce for doms as a web primitive. Like imagine if I could make a dom (or feed) that was some selection and transformation of another dom

[onedognight]

You have just re-invented XLST.

[Pfeil]

Related discussion to remove XSLT from the web platform: https://github.com/whatwg/html/issues/11523

[pimlottc]

*XSLT

[1-more]

https://www.w3schools.com/xml/tryxslt.asp?xmlfile=cdcatalog&... give it a whirl!

[jeroenhd]

In the days of XHTML, XSLT would be exactly what. The modern web equivalent would require XSLT but for HTML/SGML (SGSLT?).