useInlineScriptId

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JSX and TSX

Summary

Rule available since: v2.3.12
Diagnostic Category: lint/nursery/useInlineScriptId
This rule doesn’t have a fix.
The default severity of this rule is error.
This rule belongs to the following domains:
- next
Sources:
- Same as @next/next/inline-script-id

How to configure

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{
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  "linter": {
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    "rules": {
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      "nursery": {
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        "useInlineScriptId": "error"
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      }
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    }
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  }
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}

Description

Enforce id attribute on next/script components with inline content or dangerouslySetInnerHTML.

Using inline scripts or dangerouslySetInnerHTML in next/script components requires an id attribute to ensure that Next.js can track and optimize them correctly.

Examples

Invalid

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import Script from 'next/script'
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export default function Page() {
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  return (
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     <Script>{`console.log('Hello world!');`}</Script>
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  )
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}

code-block.jsx:5:6 lint/nursery/useInlineScriptId ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ next/script components have inline content or `dangerouslySetInnerHTML` without id attribute.
  
    3 │ export default function Page() {
    4 │   return (
  > 5 │      <Script>{`console.log(‘Hello world!’);`}</Script>
      │      ^^^^^^^^
    6 │   )
    7 │ }
  
  ℹ Next.js requires id attribute to track and optimize inline scripts. Without it, performance issues may occur.
  
  ℹ See the Next.js docs for more details.
  
  ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.

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import Script from 'next/script'
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export default function Page() {
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  return (
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     <Script dangerouslySetInnerHTML={{ __html: `console.log('Hello world!');` }} />
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  )
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}

code-block.jsx:5:6 lint/nursery/useInlineScriptId ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ next/script components have inline content or `dangerouslySetInnerHTML` without id attribute.
  
    3 │ export default function Page() {
    4 │   return (
  > 5 │      <Script dangerouslySetInnerHTML={{ __html: `console.log(‘Hello world!’);` }} />
      │      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    6 │   )
    7 │ }
  
  ℹ Next.js requires id attribute to track and optimize inline scripts. Without it, performance issues may occur.
  
  ℹ See the Next.js docs for more details.
  
  ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.

Valid

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import Script from 'next/script'
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export default function Page() {
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  return (
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     <Script id="my-script">{`console.log('Hello world!');`}</Script>
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  )
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}

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import Script from 'next/script'
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export default function Page() {
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  return (
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     <Script id="my-script" dangerouslySetInnerHTML={{ __html: `console.log('Hello world!');` }} />
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  )
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}