Sorts a json object by their keys

jsonsort.js

const fs = require('fs')
const data = require('./data.json')

const sorted = Object.keys(data).sort().reduce(
  (obj, key) => { 
    obj[key] = data[key]; 
    return obj;
  }, 
  {}
)

fs.writeFileSync('sorted.json', JSON.stringify(sorted))