2c:null 2d:["$","title",null,{"children":"Стандартная библиотека | Сандро | Observable"}] 32:[] 30:{"id":"f4d9b9e230153a4d","slug":"n","title":"Стандартная библиотека","thumbnail":"b074bd00bbd66c85f0b0b829bf8a2f37f8ba7b78ae989d4536c39a61ed034849","access_level":"public","create_time":"$D2018-07-20T12:32:59.532Z","update_time":"$D2018-07-20T13:25:51.488Z","view_time":null,"first_public_time":"$D2018-07-20T13:25:52.888Z","has_unpublished_edits":null,"fork":true,"stars":1,"starred":false,"owner":{"type":"team","id":"0a9c12baacff9b60","login":"warsan","name":"Сандро","avatar_url":"https://avatars-next.observableusercontent.com/cf4f78e2c53176203f3eb5eb7ee079333d13912a4ee31aa34166dd94146f522f","tier":"starter_2024"},"version":596,"publish_version":596,"role":null,"authored":false,"authors":[{"type":"individual","id":"3a697b2116f96092","login":"warsan","name":"Сандро","avatar_url":"https://avatars-next.observableusercontent.com/cf4f78e2c53176203f3eb5eb7ee079333d13912a4ee31aa34166dd94146f522f","tier":null}],"members":[{"type":"individual","id":"3a697b2116f96092","login":"warsan","name":"Сандро","avatar_url":"https://avatars-next.observableusercontent.com/cf4f78e2c53176203f3eb5eb7ee079333d13912a4ee31aa34166dd94146f522f","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"titling":"auto","title":"Стандартная библиотека","cells":[{"id":1,"value":"md`# Стандартная библиотека\n\nДокументирование стандартной библиотеки Observable.\n\n

`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":12,"value":"md`## DOM`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":206,"value":"DOM // Расширь меня!","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":273,"value":"{\n const canvas = DOM.canvas(width, 33);\n const context = canvas.getContext(\"2d\");\n context.fillText(\"Привет, я холст!\", 0, 20);\n return canvas;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":289,"value":"{\n const context = DOM.context2d(width, 33);\n context.fillText(\"Привет, я холст!\", 0, 20);\n return context.canvas;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":295,"value":"DOM.download(\n new Blob([JSON.stringify({hello: \"world\"})], {type: \"application/json\"}),\n \"привет.json\", // необязательное имя файла\n \"Клик, чтобы скачать\" // дополнительная кнопка\n)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":78,"value":"{\n // Вместо этого рассмотрите использование литерала шаблона с тегами html.\n const i = DOM.element(\"i\");\n i.textContent = \"Привет, мир!\";\n return i;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":311,"value":"{\n // Вместо этого рассмотрите использование DOM.svg или HTML-тегов с тегами svg.\n const svg = DOM.element(\"svg:svg\", {width, height: 27});\n const text = svg.appendChild(DOM.element(\"svg:text\", {y: 22}));\n text.textContent = \"Привет, я SVG!\";\n return svg;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":87,"value":"// Вместо этого рассмотрите использование литерала шаблона с тегами html.\nDOM.input()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":347,"value":"// Вместо этого рассмотрите использование литерала шаблона с тегами html.\nDOM.input(\"checkbox\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":351,"value":"// Вместо этого рассмотрите использование литерала шаблона с тегами html.\nDOM.input(\"file\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":91,"value":"// Вместо этого используйте DOM.range или HTML-тегированный шаблон.\nDOM.input(\"range\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":95,"value":"// Вместо этого рассмотрите использование литерала шаблона с тегами html.\nDOM.range(\n 0, // min\n 10, // max\n 1 // step\n)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":103,"value":"// Вместо этого рассмотрите использование литерала шаблона с тегами html.\nDOM.select([\"один\", \"два\", \"три\"])","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":358,"value":"{\n // Вместо этого рассмотрите использование литерала шаблона с тегами html.\n const svg = DOM.svg(width, 27);\n const text = svg.appendChild(DOM.element(\"svg:text\", {y: 22}));\n text.textContent = \"Привет, я SVG!\";\n return svg;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":83,"value":"// Вместо этого рассмотрите использование литерала шаблона с тегами html.\nDOM.text(\"Я - текстовый узел.\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":212,"value":"md`## Теги шаблонов`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":42,"value":"html`\n Привет, мир!\n`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":99,"value":"html``","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":108,"value":"html``","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":48,"value":"md`Привет, *мир*!`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":362,"value":"md`Текущее время ${new Date(now)}.` // реактивный Markdown!","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":53,"value":"tex`E = mc^2`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":500,"value":"tex`\nf(x) = \\int_{-\\infty}^\\infty\n \\hat f(\\xi)\\,e^{2 \\pi i \\xi x}\n \\,d\\xi\n`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":513,"value":"tex.block`\nf(x) = \\int_{-\\infty}^\\infty\n \\hat f(\\xi)\\,e^{2 \\pi i \\xi x}\n \\,d\\xi\n`","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":19,"value":"md`## Файлы`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":249,"value":"Files // Расширь меня!","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":367,"value":"viewof file = DOM.input(\"file\") // Попробуйте открыть файл.","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":370,"value":"Files.buffer(file)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":373,"value":"Files.text(file)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":376,"value":"Files.url(file)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":22,"value":"md`## Генераторы`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":254,"value":"Generators // Расширь меня!","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":390,"value":"function* integers() {\n let i = -1;\n while (true) {\n yield ++i;\n }\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":386,"value":"Generators.filter(integers(), d => d & 1) // Нечетные целые числа.","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":397,"value":"inputElement = DOM.range()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":400,"value":"// Вместо этого рассмотрите возможность использования viewof.\ninputValue = Generators.input(inputElement)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":485,"value":"// viewof использует Generators.input (и Generators.observe) внутри.\nviewof value = DOM.range()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":490,"value":"value","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":406,"value":"Generators.map(integers(), d => d ** 2) // Квадраты.","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":412,"value":"// Вместо этого рассмотрите возможность использования Generators.input или viewof.\n// Как и Generators.queue, за исключением того, что он дает только последнее уведомление.\nGenerators.observe(notify => {\n const mousemoved = event => notify([event.clientX, event.clientY]);\n window.addEventListener(\"mousemove\", mousemoved);\n return () => window.removeEventListener(\"mousemove\", mousemoved);\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":416,"value":"// Вместо этого рассмотрите возможность использования Generators.input или viewof.\n// Как и Generators.observe, за исключением того, что он дает все уведомленные значения.\nGenerators.queue(notify => {\n const mousemoved = event => notify([event.clientX, event.clientY]);\n window.addEventListener(\"mousemove\", mousemoved);\n return () => window.removeEventListener(\"mousemove\", mousemoved);\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":424,"value":"Generators.valueAt(integers(), 10) // Возвращает значение 11-го урожая (индекс на основе нуля).","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":25,"value":"md`## Обещания`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":258,"value":"Promises // Расширь меня!","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":435,"value":"// Рассмотрим также Promises.tick.\nPromises.delay(5000, \"resolved value\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":450,"value":"// Как и Promises.delay, но синхронизирован.\nPromises.tick(1000, \"resolved value\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":454,"value":"{\n while (true) {\n yield Promises.tick(1000).then(() => new Date);\n }\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":459,"value":"{\n // Несколько более сложная вариация Promises.delay.\n const date = new Date;\n date.setSeconds(date.getSeconds() + 1);\n return Promises.when(date, \"resolved value\");\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":31,"value":"md`## требования`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":262,"value":"d3 = require(\"d3@4\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":472,"value":"topojson = require(\"topojson-client\", \"topojson-simplify\") // Объединить библиотеки!","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":476,"value":"require(\"https://unpkg.com/d3@4/build/d3.js\") // URL-адреса тоже работают.","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":519,"value":"resolve(\"d3@4\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":194,"value":"md`## Реактивные переменные`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":442,"value":"{\n let i = 0;\n const div = html`

`;\n const timer = d3.timer(() => div.textContent = ++i);\n invalidation.then(() => timer.stop()); // Остановитесь, если переоцените.\n return div;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":197,"value":"now // Date.now()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":201,"value":"width // Попробуйте изменить размер окна.","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W32","stdlib":"1"}} 31:"$30:body"