{
  "url": "https://unifast.dev/ja/docs/packages/node/custom-heading-id/",
  "locale": "ja",
  "title": "customHeadingId()",
  "description": "`{#custom-id}` 構文を使って、見出しにカスタム ID を設定します。",
  "section": "packages",
  "body": "```ts\nimport { customHeadingId } from \"@unifast/node\";\n```\n\n## シグネチャ\n\n```ts\nfunction customHeadingId(): UnifastPlugin\n```\n\n## パラメータ\n\nなし。\n\n## 使い方\n\n```ts\nimport { compile, customHeadingId } from \"@unifast/node\";\n\nconst md = `# Introduction {#intro}`;\n\nconst result = compile(md, {\n  plugins: [customHeadingId()],\n});\n// The heading gets id=\"intro\" instead of the auto-generated slug\n```\n\n## 使用例\n\n### カスタム ID\n\n見出しの末尾に `{#custom-id}` 構文を書くと、任意の `id` 属性を設定できます。ブレースで囲まれた部分はレンダリングされたテキストから除去されます。\n\n```ts\nimport { compile, customHeadingId } from \"@unifast/node\";\n\nconst md = `## Getting Started {#getting-started}`;\n\nconst result = compile(md, { plugins: [customHeadingId()] });\nconsole.log(result.output);\n// <h2 id=\"getting-started\">Getting Started</h2>\n```\n\n### カスタム ID のない見出し\n\n`{#...}` 構文のない見出しは変更されません。見出しテキストから生成されたデフォルトのスラグが使われます。\n\n```ts\nimport { compile, customHeadingId } from \"@unifast/node\";\n\nconst md = `## Getting Started`;\n\nconst result = compile(md, { plugins: [customHeadingId()] });\nconsole.log(result.output);\n// <h2 id=\"getting-started\">Getting Started</h2>\n```\n\n### クラスや任意の属性\n\nブレース構文は `.class` や `key=value` 記法にも対応しています。\n\n```ts\nimport { compile, customHeadingId } from \"@unifast/node\";\n\nconst md = `## API Reference {#api .docs data-level=2}`;\n\nconst result = compile(md, { plugins: [customHeadingId()] });\nconsole.log(result.output);\n// <h2 id=\"api\" class=\"docs\" data-level=\"2\">API Reference</h2>\n```",
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