json2csv quick hack

json2csv.js

const data = [
  { "name": "John", "time": new Date().toISOString(), "age": "old" },
  {
    "name": "Jeff", "time": new Date().toISOString(), "age": "older"
  }
]

const header = Object.keys(data[0]).map(_ => JSON.stringify(_)).join(';') + '\n'
const outData = data.reduce((acc, row) => {
  return acc + Object.values(row).map(_ => JSON.stringify(_)).join(';') + '\n'
}, header)

console.log(outData)
/*
"name";"time";"age"
"John";"2020-10-16T20:15:32.290Z";"old"
"Jeff";"2020-10-16T20:15:32.290Z";"older"
*/