28:null 29:["$","title",null,{"children":"study this document, and make observations aloud | Chris Thorn | Observable"}] 2e:[] 2c:{"id":"c66ae5c52fc53ff0","slug":"interview-puzzle","title":"study this document, and make observations aloud","thumbnail":"ee9fd74642626108e3e7150e8544644b5845c7aee03b9a79e15551b1054aaf7b","access_level":"public","create_time":"$D2021-01-07T22:20:44.607Z","update_time":"$D2021-01-11T18:26:05.946Z","view_time":null,"first_public_time":"$D2021-01-07T22:58:39.908Z","has_unpublished_edits":null,"fork":false,"stars":0,"starred":false,"owner":{"type":"team","id":"46fac7ff23599075","login":"humanchimp","name":"Chris Thorn","avatar_url":"https://avatars-next.observableusercontent.com/308d5779f34fda7a5d6e27089a68251f6ce3d9243c916cded54adaf9f66f7e6e","tier":"starter_2024"},"version":143,"publish_version":143,"role":null,"authored":false,"authors":[{"type":"individual","id":"0bc08ee7df251f18","login":"humanchimp","name":"Chris Thorn","avatar_url":"https://avatars-next.observableusercontent.com/308d5779f34fda7a5d6e27089a68251f6ce3d9243c916cded54adaf9f66f7e6e","tier":null}],"members":[{"type":"individual","id":"0bc08ee7df251f18","login":"humanchimp","name":"Chris Thorn","avatar_url":"https://avatars-next.observableusercontent.com/308d5779f34fda7a5d6e27089a68251f6ce3d9243c916cded54adaf9f66f7e6e","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":1,"collection":null,"type":"notebook","body":{"title":"study this document, and make observations aloud","cells":[{"id":0,"value":"md`# study this document, and make observations aloud\n\n*Note*: this code contains a contrived \"bug\"`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":74,"value":"data = await (await fetch('https://api.nobelprize.org/v1/prize.json')).json();","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":2,"value":"html` \n \n \n \n \n \n ${rows(data).map(\n (d) => html` \n \n \n \n `\n )}\n

Category	Cardinality	Span
${d.category}	${d.cardinality}	${d.span}

`;\n","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":12,"value":"function rows(data) {\n const byCategory = groupByCategory(data);\n return Object.entries(byCategory).map(([category, prizesByCategory]) => {\n const allYears = [\n ...new Set(prizesByCategory.flatMap((prize) => +prize.year)),\n ];\n const [minYear, maxYear] = minMax(allYears);\n return {\n category,\n cardinality: sum(prizesByCategory.map((it) => it.laureates?.length ?? 0)),\n span: `${minYear}—${maxYear}`,\n };\n });\n}\n","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":61,"value":"function sum(arr) {\n arr.reduce((memo, value) => memo + value, 0);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":54,"value":"function groupByCategory(arr) {\n return data.prizes.reduce((memo, item) => {\n memo[item.category] ??= [];\n memo[item.category].push(item);\n return memo;\n }, {});\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":48,"value":"function minMax(arr) {\n let min = Infinity;\n let max = -Infinity;\n for (const item of arr) {\n if (item < min) {\n min = item;\n }\n if (item > max) {\n max = item;\n }\n }\n return [min, max];\n}\n","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":133,"value":"md`# extra credit\n\nAfter fixing the contrived \"bug\", reimplement any of the above functions however you want!`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W2e","stdlib":"1","titling":"auto"}} 2d:"$2c:body"