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useExportsLast

src/content/docs/linter/rules/use-exports-last.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: `v2.0.0` - Diagnostic Category: [`lint/style/useExportsLast`](/reference/diagnostics#diagnostic-category) - This rule isn't recommended, so you need to enable it. - This rule doesn't have a fix. - The default severity of this rule is [**information**](/reference/diagnostics#information). - Sources: - Same as [`import/exports-last`](https://github.com/import-js/eslint-plugin-import/blob/main/docs/rules/exports-last.md)

How to configure

json
{
	"linter": {
		"rules": {
			"style": {
				"useExportsLast": "error"
			}
		}
	}
}

Description

Require that all exports are declared after all non-export statements.

Enforces that export statements are placed at the end of the module, after all other statements.

Examples

Invalid

js
export const a = 1;
const b = 2;
<pre class="language-text"><code class="language-text">code-block.js:1:1 <a href="https://biomejs.dev/linter/rules/use-exports-last">lint/style/useExportsLast</a> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ <strong><span style="color: lightgreen;">ℹ</span></strong> <span style="color: lightgreen;">All exports should be declared after all non-export statements.</span> <strong><span style="color: Tomato;">&gt;</span></strong> <strong>1 │ </strong>export const a = 1; <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><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>const b = 2; <strong>3 │ </strong> <strong><span style="color: lightgreen;">ℹ</span></strong> <span style="color: lightgreen;">Move this statement before the export statements to keep all exports at the end of the module.</span> </code></pre>

Valid

js
const a = 1;
export const b = 2;
js
const a = 1;
export { a };
</TabItem> </Tabs>