Skip to main content

db.command.aggregate.dateFromString

1. Operator Description​

Function: Converts a date/time string to a date object.

Declaration: db.command.aggregate.dateFromString({dateString,timezone})

2. Operator Parameters​

FieldTypeRequiredDescription
dateStringstringRequiredDate string
timezonestringNoTimezone

3. Sample Code​

// Sample code in the Cloud Function environment
const tcb = require('@cloudbase/node-sdk')
const app = tcb.init({
  env: 'xxx'
})

const db = app.database()
const $ = db.command.aggregate

exports.main = async (event, context) => {
  const res = await db
    .collection('dates')
    .aggregate()
    .project({
      _id: 0,
      date: $.dateFromString({
        dateString: '2019-05-14T09:38:51.686Z'
      })
    })
    .end()
  console.log(res.data)
}

The output is as follows:

{
  "date": ISODate("2019-05-14T09:38:51.686Z")
}