# Collection.where
Specifies filter conditions.
The method signature is shown as below:
function where(rule: object): Query
The method accepts a required object parameter rule to define the filter conditions.
Sample code
Find out the unfinished to-dos whose progress is 50:
const db = wx.cloud.database()
db.collection('todos').where({
done: false,
progress: 50
})
.get({
success: console.log,
fail: console.error
})