Convert XE currency rates JSON to CSV

xe-rates-to-csv.js

let c1 = require('./currency-rates-2.json')

console.log('Date,', c1.from, 'to', c1.to)

let c1b = c1.batchList[0]
let ts = c1b.startTime
for (let i = 1; i < c1b.rates.length; i += 1) {
    let actualrate = c1b.rates[i] - c1b.rates[0]
    console.log(new Date(ts).toLocaleDateString() + ', ' + actualrate)
    ts += c1b.interval
}