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noArguments

src/content/docs/linter/rules/no-arguments.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: `v1.0.0` - Diagnostic Category: [`lint/complexity/noArguments`](/reference/diagnostics#diagnostic-category) - This rule is **recommended**, meaning it is enabled by default. - This rule doesn't have a fix. - The default severity of this rule is [**warning**](/reference/diagnostics#warning). - Sources: - Same as [`prefer-rest-params`](https://eslint.org/docs/latest/rules/prefer-rest-params)

How to configure

json
{
	"linter": {
		"rules": {
			"complexity": {
				"noArguments": "error"
			}
		}
	}
}

Description

Disallow the use of arguments.

Examples

Invalid

js
function f() {
   console.log(arguments);
}
<pre class="language-text"><code class="language-text">code-block.js:2:16 <a href="https://biomejs.dev/linter/rules/no-arguments">lint/complexity/noArguments</a> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ <strong><span style="color: Orange;">⚠</span></strong> <span style="color: Orange;">Use the </span><span style="color: Orange;"><strong>rest parameters</strong></span><span style="color: Orange;"> instead of </span><span style="color: Orange;"><strong>arguments</strong></span><span style="color: Orange;">.</span> <strong>1 │ </strong>function f() &#123; <strong><span style="color: Tomato;">&gt;</span></strong> <strong>2 │ </strong> console.log(arguments); <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>3 │ </strong>&#125; <strong>4 │ </strong> <strong><span style="color: lightgreen;">ℹ</span></strong> <span style="color: lightgreen;"><strong>arguments</strong></span><span style="color: lightgreen;"> does not have </span><span style="color: lightgreen;"><strong>Array.prototype</strong></span><span style="color: lightgreen;"> methods and can be inconvenient to use.</span> </code></pre>

Valid

cjs
function f() {
    let arguments = 1;
    console.log(arguments);
}
</TabItem> </Tabs>