# Collection.count / Query.count

Calculates the number of records in the collection or number of result records corresponding to the query statement. Acting as the management end, the cloud functions can calculate the number of records in all the collections (The calculation on Mini Program end may be subject to permissions. See count of Mini Program).

Function signature is shown as below:

function count(): Promise<Result>

Description of return value

The results of resolve and reject for Promise are defined as below:

Result description

Result from resolve is an object with the following structure:

Sample code

Get total number of my to-dos

Promise style

const cloud = require('wx-server-sdk')
cloud.init()
const db = cloud.database()
exports.main = async (event, context) => {
  return await db.collection('todos').where({
    _openid: 'xxx' // Enter the current user openid
  }).count()
}