---
id: is
title: ".is()"
slug: is
custom_edit_url: https://github.com/supabase/supabase/edit/master/web/spec/supabase.yml
---
import Tabs from '@theme/Tabs';
import TabsPanel from '@theme/TabsPanel';
A check for exact equality (null, true, false), finds all rows whose
value on the stated `column` exactly match the specified `value`.
```js
const { data, error } = await supabase
.from('cities')
.select('name, country_id')
.is('name', null)
```
## Parameters
column
required
object
The column to filter on.
value
required
boolean | null
The value to filter with.
## Examples
### With `select()`
```js
const { data, error } = await supabase
.from('cities')
.select('name, country_id')
.is('name', null)
```
### With `update()`
```js
const { data, error } = await supabase
.from('cities')
.update({ name: 'Mordor' })
.is('name', null)
```
### With `delete()`
```js
const { data, error } = await supabase
.from('cities')
.delete()
.is('name', null)
```
### With `rpc()`
```js
// Only valid if the Postgres function returns a table type.
const { data, error } = await supabase
.rpc('echo_all_cities')
.is('name', null)
```