Converting string to numeric not working about d3-book HOT 4 CLOSED

OK, good catch. The reason this isn't working as you'd expect with D3 v5 is:

D3 now uses Promises instead of asynchronous callbacks to load data. Promises simplify the structure of asynchronous code, especially in modern browsers that support async and await.

https://github.com/d3/d3/blob/master/CHANGES.md

So the way D3 v5 handles loading external data has changed significantly, and the example code I provided for v4 will not work.

I've captured this on the errata page for the book, so it can be amended in the next update:

http://www.oreilly.com/catalog/errata.csp?isbn=0636920037316

Thanks for catching this!

from d3-book.

I just tested this and am running the example chapter_05/03_csv_loading_example.html, and the results are as expected — Deliciousness is converted from a String to a number value:

What version of D3 are you using? Are you running a local web server? Are you using a specific example file?

from d3-book.

from d3-book.

from d3-book.