I’ve been using fetch/then in the first couple d3 visualization challenges but now that I’m getting to the chloropleth map challenge it looks like the examples I see are all using queue/defer to load the data. Is there a best practice or is the queue/defer used for larger (so longer to load)/multiple datasets?
Nevermind… just realized queue defer has been depreciated for promise.all.
JSON.parse and array methods such as
filter were added – and a year before that was fully, officially realised. Promises didn’t exist, and neither did