sven.js

const Parser = require('fast-xml-parser')
const he = require('he')
const createCsvWriter = require('csv-writer').createObjectCsvWriter
const fs = require('fs')

const xmlFile = fs.readFileSync('../../../Downloads/folkets_sv_en_public.xml', 'utf-8')

const options = {
  attributeNamePrefix: '@_',
  attrNodeName: false, // default is 'false'
  textNodeName: '#text',
  ignoreAttributes: false,
  ignoreNameSpace: false,
  allowBooleanAttributes: false,
  parseNodeValue: true,
  parseAttributeValue: false,
  trimValues: true,
  cdataTagName: '__cdata', // default is 'false'
  cdataPositionChar: '\\c',
  localeRange: '', // To support non english character in tag/attribute values.
  parseTrueNumberOnly: false,
  attrValueProcessor: a => he.decode(a, {isAttributeValue: true}), // default is a=>a
  tagValueProcessor: a => he.decode(a) // default is a=>a
}

const tObj = Parser.getTraversalObj(xmlFile, options)
const jsonObj = Parser.convertToJson(tObj, options)

const words = jsonObj['dictionary']['word']

let csvWords = []

words.forEach(word => {
  let sv = word['@_value']

  let en = ''
  let translation = word['translation']

  if (translation !== undefined) {
    en = translation['@_value']
  } else {
    en = ''
  }

  if (en !== '') csvWords.push({sv, en})
})

const csvWriter = createCsvWriter({
  path: 'sven.csv',
  header: [
    {'id': 'sv', title: 'sv'},
    {'id': 'en', title: 'en'}
  ]
})

csvWriter
  .writeRecords(csvWords)
  .then(() => console.log(`Wrote ${csvWords.length} CSV records.`))