2c:null 2d:["$","title",null,{"children":"Stars | lionel-rowe | Observable"}] 32:T467,class StarCreator { random = Math.random createStarsSvg(count: number, dimensions: [width: number, height: number]) { const [width, height] = dimensions const stars = Array.from({ length: count }, () => this.#createStar(width, height)) return this.#svgBoilerplate( width, height, stars.map((star) => `` ).join('\n'), ) } #createStar(width: number, height: number) { return { x: width * this.random(), y: height * this.random(), size: 1 + this.random() * 2, // skews distribution for rare bright stars alpha: Math.pow(this.random(), 4), } } #svgBoilerplate(width: number, height: number, content: string) { return `` } }33:[] 30:{"id":"8b61fd684164125f","slug":"stars","title":"Stars","thumbnail":null,"access_level":"public","create_time":"$D2026-10-02T12:39:37.831Z","update_time":"$D2026-10-02T13:51:52.065Z","view_time":null,"first_public_time":"$D2026-10-02T12:53:00.629Z","has_unpublished_edits":null,"fork":false,"stars":0,"starred":false,"owner":{"type":"team","id":"07056da88075f406","login":"lionel-rowe","name":"","avatar_url":"https://avatars-next.observableusercontent.com/aa4ec4e1a2d7d69f33f38b676bb90365e5df5964535a4844e34d5392282699c2","tier":"starter_2024"},"version":82,"publish_version":82,"role":null,"authored":false,"authors":[{"type":"individual","id":"764d323226e5744a","login":"lionel-rowe","name":"","avatar_url":"https://avatars-next.observableusercontent.com/aa4ec4e1a2d7d69f33f38b676bb90365e5df5964535a4844e34d5392282699c2","tier":null}],"members":[{"type":"team","id":"07056da88075f406","login":"lionel-rowe","name":"","avatar_url":"https://avatars-next.observableusercontent.com/aa4ec4e1a2d7d69f33f38b676bb90365e5df5964535a4844e34d5392282699c2","tier":"starter_2024","role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"titling":"auto","title":"Stars","cells":[{"id":1,"value":"# Stars","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":16,"value":"md`${Object.assign(new StarCreator(), { random: prng(74896) }).createStarsSvg(200, [200, 200])}`","pinned":true,"hidden":false,"mode":"ts","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":2,"value":"$32","pinned":true,"hidden":false,"mode":"ts","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":3,"value":"/** A crappy PRNG */\nfunction prng(seed: number) {\n\treturn () => {\n\t\t// Take the sine, multiply to shift decimals, and grab the fractional part\n\t\tconst x = Math.sin(seed++) * 10_000\n\t\treturn x - Math.floor(x)\n\t}\n}","pinned":true,"hidden":false,"mode":"ts","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W33","stdlib":"2"}} 31:"$30:body"