Parsing dbf file returns unexpected null values

[mkfreeman]

The .dbf file downloaded here returns null values for each district. See this notebook for an example.

Other parsers (such as the one in R) detect values:

@Fil noted that:

the file is full of \x00 then fails on !(value = value.trim()) || isNaN(value = +value) ? null : value; in the readNumber function. I guess we should trim the \x00 not only spaces

[Fil]

I see \x00 everywhere in my shape files, not just in number fields. It's always a bit of pain to eradicate.

[Fil]

duplicate of #68

[mbostock]

Closing as duplicate.