---
id: is
title: '.is()'
slug: is
custom_edit_url: https://github.com/supabase/supabase/edit/master/spec/supabase_js_v1_legacy.yml
---

import Tabs from '@theme/Tabs'
import TabItem from '@theme/TabItem'

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

<ul className="method-list-group">
  
<li className="method-list-item">
  <h4 className="method-list-item-label">
    <span className="method-list-item-label-name">
      column
    </span>
    <span className="method-list-item-label-badge required">
      required
    </span>
    <span className="method-list-item-validation">
      <code>object</code>
    </span>
  </h4>
  <div class="method-list-item-description">

The column to filter on.

  </div>
  
</li>

<li className="method-list-item">
  <h4 className="method-list-item-label">
    <span className="method-list-item-label-name">
      value
    </span>
    <span className="method-list-item-label-badge required">
      required
    </span>
    <span className="method-list-item-validation">
      <code>boolean</code> | <code>null</code>
    </span>
  </h4>
  <div class="method-list-item-description">

The value to filter with.

  </div>
  
</li>

</ul>

## 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)
```