DanfoJS read local file

The browser version of DanfoJS is loaded by default.

Save a remote file locally

// Get Url
const r = await fetch('https://raw.githubusercontent.com/plotly/datasets/master/finance-charts-apple.csv')
const content = await r.text();
// Write ti file
_fs.writeFileSync('/Users/alagrede/Desktop/finance-charts-apple.csv', content);
print("Done!")

Read local file

The browser version only support http:// urls. To read local file, use Node FS API like below:

const data = _fs.readFileSync('/Users/alagrede/Desktop/finance-charts-apple.csv', 'utf8');
//print(data)
const blob = new Blob([data], {
  type: "application/text",
});

const df = await dfd.readCSV(blob);
print(df);

Use DanfoJS node package

You can also use the Node version of DanfoJS then run your code directly with your local Node installation:

npm i -S danfo-node

//exec :/usr/local/opt/node@14/bin/node
const dfd = require("danfojs-node")
let df = await dfd.readCSV('file:///Users/alagrede/Desktop/finance-charts-apple.csv')
print(df)