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useNodeAssertStrict

src/content/docs/linter/rules/use-node-assert-strict.mdx

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import { Tabs, TabItem } from '@astrojs/starlight/components';

<Tabs> <TabItem label="JavaScript (and super languages)" icon="seti:javascript"> ## Summary - Rule available since: `v1.6.0` - Diagnostic Category: [`lint/style/useNodeAssertStrict`](/reference/diagnostics#diagnostic-category) - This rule isn't recommended, so you need to enable it. - This rule has a [**safe**](/linter/#safe-fixes) fix. - The default severity of this rule is [**warning**](/reference/diagnostics#warning). ## How to configure ```json title="biome.json" { "linter": { "rules": { "style": { "useNodeAssertStrict": "error" } } } }

## Description
Promotes the usage of `node:assert/strict` over `node:assert`.

If you prefer stricter assertions when using the Node.js assertion module, the package `node:assert/strict` exposes a set of alias for stricter assertions.

## Examples

### Invalid

```js
import * as assert from "node:assert"

<pre class="language-text"><code class="language-text">code-block.js:1:25 <a href="https://biomejs.dev/linter/rules/use-node-assert-strict">lint/style/useNodeAssertStrict</a> <span style="color: #000; background-color: #ddd;"> FIXABLE </span> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ <strong><span style="color: Orange;">⚠</span></strong> <span style="color: Orange;">Use </span><span style="color: Orange;"><strong>node:assert/strict</strong></span><span style="color: Orange;"> instead.</span> <strong><span style="color: Tomato;">></span></strong> <strong>1 │ </strong>import * as assert from "node:assert" <strong> │ </strong> <strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong><strong><span style="color: Tomato;">^</span></strong> <strong>2 │ </strong> <strong><span style="color: lightgreen;">ℹ</span></strong> <span style="color: lightgreen;">The use of stricter assertion is preferred.</span> <strong><span style="color: lightgreen;">ℹ</span></strong> <span style="color: lightgreen;">Safe fix</span><span style="color: lightgreen;">: </span><span style="color: lightgreen;">Replace with </span><span style="color: lightgreen;"><strong>node:assert/strict</strong></span><span style="color: lightgreen;">.</span> <strong> 1 │ </strong>import<span style="opacity: 0.8;">·</span>*<span style="opacity: 0.8;">·</span>as<span style="opacity: 0.8;">·</span>assert<span style="opacity: 0.8;">·</span>from<span style="opacity: 0.8;">·</span>"node:assert<span style="color: MediumSeaGreen;">/</span><span style="color: MediumSeaGreen;">s</span><span style="color: MediumSeaGreen;">t</span><span style="color: MediumSeaGreen;">r</span><span style="color: MediumSeaGreen;">i</span><span style="color: MediumSeaGreen;">c</span><span style="color: MediumSeaGreen;">t</span>" <strong> │ </strong> <span style="color: MediumSeaGreen;">+</span><span style="color: MediumSeaGreen;">+</span><span style="color: MediumSeaGreen;">+</span><span style="color: MediumSeaGreen;">+</span><span style="color: MediumSeaGreen;">+</span><span style="color: MediumSeaGreen;">+</span><span style="color: MediumSeaGreen;">+</span> </code></pre>

Valid

js

import * as assert from "node:assert/strict"

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