2e:null 2f:["$","title",null,{"children":"Extracting a Notebook's Table of Contents | Fabian Iwand | Observable"}] 34:T6c9,// Thumbnail. Icons via https://materialdesignicons.com/ 0&& htl.html`

`35:[] 32:{"id":"484dc83dced37031","slug":"toc-extraction","title":"Extracting a Notebook's Table of Contents","thumbnail":"8ce70903276b1539ffd89577dbb15f97cb267e13b45972a2d777a1433da9f4ec","access_level":"public","create_time":"$D2022-11-23T07:45:14.465Z","update_time":"$D2022-11-24T10:38:44.964Z","view_time":null,"first_public_time":"$D2022-11-23T08:23:44.883Z","has_unpublished_edits":null,"fork":false,"stars":10,"starred":false,"owner":{"type":"team","id":"898d35f8860c7f03","login":"mootari","name":"Fabian Iwand","avatar_url":"https://avatars-next.observableusercontent.com/0d7defa821f38094c03bad23b9b360a5364e6e97e21fc238c39ddc48db7994ad","tier":"starter_2024"},"version":164,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"07362516b5994994","login":"mootari","name":"Fabian Iwand","avatar_url":"https://avatars-next.observableusercontent.com/0d7defa821f38094c03bad23b9b360a5364e6e97e21fc238c39ddc48db7994ad","tier":null}],"members":[{"type":"individual","id":"07362516b5994994","login":"mootari","name":"Fabian Iwand","avatar_url":"https://avatars-next.observableusercontent.com/0d7defa821f38094c03bad23b9b360a5364e6e97e21fc238c39ddc48db7994ad","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":true,"trashed":false,"lapsed":null,"subscribed":null,"forks":2,"collection":{"id":"cd59e33651ec44ac","slug":"observable","title":"Observable Things","owner":{"id":"898d35f8860c7f03","login":"mootari","name":"Fabian Iwand"}},"type":"notebook","body":{"title":"Extracting a Notebook's Table of Contents","cells":[{"id":0,"value":"# Extracting a Notebook's Table of Contents\n\nAutomatically generates a static table of contents from a notebook's Markdown cells that can be used anywhere. \n\nTo generate the items, each cell [is checked](#headings) for a leading Markdown heading.\n\n---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":7,"value":"viewof notebook = notebookInput({\n label: 'Notebook URL',\n value: 'https://observablehq.com/@categorise/surveyslate-docs',\n width: '100%',\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":83,"value":"viewof levels = interval([1, 6], {\n step: 1,\n value: [1, 6],\n label: 'Heading levels',\n format: ([a, b]) => htl.html`${d3.range(a, b + 1).map((n, i) => `${i ? ', ' : ''}H${n}`)}`\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":153,"value":"viewof prefer_name = Inputs.toggle({label: 'Prefer names', value: true})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":60,"value":"viewof markdown_toc = !proxyStats.requests\n ? htl.html`

Proxy is starting, please wait ...`\n : Object.defineProperty(\n htl.html`\n

Markdown

${\n      headings\n        .filter(d => d.level >= levels[0] && d.level <= levels[1])\n        .map(d => `${'  '.repeat(d.level - levels[0])}- [${d.text}](${notebook.url}#${d.id})\\n`).join('')\n  }`,\n  'value',\n  { get() { return this.lastElementChild.value } }\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":72,"value":"#### Preview\n\n${markdown_toc}","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"preview","database":"$undefined"},{"id":36,"value":"---\n## Data","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":62,"value":"notebook","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":28,"value":"data = api(new URL(notebook.document).pathname)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":42,"value":"headings = data.nodes\n  .map(({id, name, value}) => {\n    const groups = value?.match(/^(\\s*md`)?([^\\w]+\\n)?(?<level>#+) (?<text>[^\\n`]+)/)?.groups;\n    return groups ? {\n      id: prefer_name && name?.length ? name : `cell-${id}`,\n      level: groups.level.length,\n      text: groups.text\n    } : null;\n  })\n  .filter(d => d)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":79,"value":"---\n## Helpers","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":25,"value":"viewof proxyStats","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":5,"value":"import {notebookInput} from '@mootari/notebook-input'","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":23,"value":"import {viewof proxyStats, api} from '@mootari/sortable-notebook-list'","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":76,"value":"import {interval} from '@mootari/range-slider'","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":137,"value":"$34","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W35","stdlib":"1","titling":"auto"}}
33:"$32:body"
</article></body></html>