I have a csv file (separated by semicolons so i use d3.dsv to read it)
d3.dsv(";", "Project.csv", function(d) {
console.log(d)
});
But i get "�" where the accents are.
I know the file is "latin_1" encoded so i tried this :
dsvReader = d3.dsv(";", "iso-8859-1");
dsvReader("Project.csv", function(d) {
console.log(d)
});
But i get the following errors :
> net::ERR_FILE_NOT_FOUND
> Uncaught (in promise) TypeError: Failed to fetch
Your first snippet: The d3-fetch function d3.dsv uses response.text() on the result of fetch, which only handles UTF-8.
Your second snippet: You try to fetch the file named iso-8859-1, which presumably does not exist. There is no argument in d3.dsv which accepts encoding.
One solution is to make sure the server has a UTF-8 file, and not a Latin-1 file. This is the simplest solution: in 2022, there are very few legitimate reasons to not use Unicode.
Another is to use fetch yourself, or use d3.buffer or d3.blob, then convert the response to UTF-8 yourself, as described in Fetching non-utf8 data with XMLHttpRequest using TextDecoder (on buffer) or .readAsText (on blob), and finally use d3.dsvFormat(";").parse on the now correct data.