examples broken by d3@6

[gordonwoodhull]

The following examples were broken in 4.1 by updating D3

• click limit on histogram - d3.event
• horizon chart - looks like bad code scaleOrdinal().domain(1,6); also uses d3.nest
• range series - animated transitions are incredibly slow (not that there should be any in this example)

[parksj10]

I guess this came after the stackoverflow post :), definitely interested to see it still

[gordonwoodhull]

Yes, after I commented I thought, gee better try that link, and it didn’t work. It’s a trivial issue and should be easy to fix.

Actually the horizon chart example is rather idiosyncratic: it does things differently from most normal charts. It would be nice to have a more normal external chart example, like one using D3FC.

[gordonwoodhull]

I fixed these examples in version 4.1.1.

(There are no changes to the core library, so I guess it didn't need a version bump, and I could just have updated the website.)