I actually started a thread on this in the 'General' channel, but based on the answers I've received I think it might be better in this JS area.
I want to learn how to build parallaxes that involve complicated data visualisations, such as these by the New York Times:
1. https://www.nytimes.com/interactive/2022/05/13/us/covid-deaths-us-one-million.html
2. https://www.nytimes.com/interactive/2020/09/27/us/donald-trump-taxes-timeline.html
I assume they are parallaxes as they are based on the end-user scrolling down the page, but I have had no success in finding how to do/build the data visualisations. I suspect there is a special package or tool or something, but I don't know what to Google. I inspected the code on the sites but I'm not wise enough to pick out any phrases that tell me the answer.
If anyone can tell me what to search for, I'd really appreciate it.
My thanks in advance.