Write array of date objects to skygear

skygear.js

const event = Object.assign((this.isExistingEvent ? this.event : new eventRecord()), this.form, {
  beginTime: str2Date(`${this.begin.date} ${this.begin.time}`),
  endTime: str2Date(`${this.end.date} ${this.end.time}`),
  rundown: this.rundown.map(slot => ({ time: str2Date(`${slot.date} ${slot.time}`), action: slot.action }))
})
WriteRecords(event)
.then(records => { console.log(records) })
.catch(error => this.$eventHub.$emit('open-snackbar', 'Failed writing Event!'))

const WriteRecords = records => {
  return new Promise((resolve, reject) => {
    skygear.publicDB.save(records).then(
      (records = {}) => resolve(Array.from(records)),
      error => {
        console.error(error)
        reject(error)
      })
  })
}
const str2Date = timeStr => !timeStr.replace(/\s/g, '').length ? new Date() : new Date(timeStr)