# Carbon Charts Svelte Carbon Charts Svelte is a thin Svelte wrapper around the vanilla JavaScript `@carbon/charts` component library. The charts are based on D3.js, a peer dependency. Documentation is provided below and in the Storybook demos. **[Storybook demos](https://charts.carbondesignsystem.com/svelte)** **[Storybook demo sources](https://github.com/carbon-design-system/carbon-charts/tree/master/packages/core/demo/data)** ## Maintenance & support These Svelte wrappers were developed by Eric Liu. Please direct all questions regarding support, bug fixes and feature requests to [@nstuyvesant](https://github.com/nstuyvesant) and [@metonym](https://github.com/metonym). ## Getting started Run the following command using [npm](https://www.npmjs.com/): ```bash npm install -D @carbon/charts-svelte d3 d3-cloud d3-sankey ``` If you prefer [Yarn](https://yarnpkg.com/en/), use the following command instead: ```bash yarn add -D @carbon/charts-svelte d3 d3-cloud d3-sankey ``` ### SvelteKit While this component library can be used with any build environments for Svelte, [SvelteKit](https://kit.svelte.dev) is the official framework for building Svelte apps supporting client-side and server-side rendering (SSR). SvelteKit is powered by [Vite](https://vitejs.dev). The module `@carbon/charts` should not be externalized for SSR when building for production. ```js // vite.config.mjs import { sveltekit } from '@sveltejs/kit/vite' /** @type {import('vite').UserConfig} */ const config = { plugins: [sveltekit()], ssr: { noExternal: process.env.NODE_ENV === 'production' ? ['@carbon/charts'] : [] } } export default config ``` #### Circular dependency warnings You may see circular dependency warnings for `d3` packages. These can be safely ignored. ## Usage Styles must be imported from `@carbon/charts-svelte/styles.css`. ```js import '@carbon/charts-svelte/styles.css' ``` ### Basic ```svelte ``` ### Dispatched events Each Svelte chart component dispatches the following events: - **on:load**: fired when the chart is instantiated - **on:update**: fired when `data` or `options` are updated - **on:destroy**: fired when the component is unmounted and the chart is destroyed ```svelte ``` ### Dynamic import Dynamically import a chart and instantiate it using the [svelte:component API](https://svelte.dev/docs/special-elements#svelte-component). By importing `@carbon/charts` within `onMount()`, you avoid problems with server-side rendering. ```svelte ``` ### Event listeners In this example, an event listener is attached to the `BarChartSimple` component that fires when hovering over a bar. ```svelte ``` ## StackBlitz examples [Sample use cases can be seen here](https://charts.carbondesignsystem.com/svelte). **When opening the link above**, click on the **Edit on StackBlitz** button for each demo to see an isolated project showing you how to reproduce the demo. ## Charting data & options Although new charts will be introduced in the future (such as a choropleth), data and options follow the same model for all charts with minor exceptions. For example, in the case of a donut chart, you're able to pass in an additional field called `center` in your options to configure the donut center. [Instructions for using the **tabular data format**](https://charts.carbondesignsystem.com/svelte/?path=/docs/docs-tutorials-tabular-data-format--docs) Additional options are available depending on the chart type being used, [see our demo examples here](https://github.com/carbon-design-system/carbon-charts/tree/master/packages/core/src/demo/charts). Customizable options (specific to chart type) can be found [here](https://charts.carbondesignsystem.com/documentation/modules/interfaces.html) ## TypeScript support Svelte version 3.31 or greater is required to use this library with TypeScript. Svelte 4.x+ is recommended. ### Enums and types For your convenience, enums and types from `@carbon/charts` are re-exported from `@carbon/charts-svelte`. ```ts import { ScaleTypes, type BarChartOptions } from '@carbon/charts-svelte' const options: BarChartOptions = { title: 'Simple bar (discrete)', height: '400px', axes: { left: { mapsTo: 'value' }, bottom: { mapsTo: 'group', scaleType: ScaleTypes.LABELS } } } ``` ### Component type Use the `ComponentType` utility type from `svelte` to extract the component type for chart components. ```ts import { onMount, type ComponentType } from 'svelte' import type { BarChartSimple } from '@carbon/charts-svelte' let component: ComponentType = null onMount(async () => { component = (await import('@carbon/charts-svelte')).BarChartSimple }) ``` ### Component props Use the `ComponentProps` utility type from `svelte` to extract the props for chart components. You can then use an [indexed access type](https://www.typescriptlang.org/docs/handbook/2/indexed-access-types.html) to extract types for individual properties. ```ts import { type ComponentProps } from 'svelte' import { BarChartSimple } from '@carbon/charts-svelte' type ChartProps = ComponentProps // Indexed access type to access the type of the `chart` property let chart: ChartProps['chart'] = null ``` ##

IBM Telemetry This package uses IBM Telemetry to collect metrics data. By installing this package as a dependency you are agreeing to telemetry collection. To opt out, see [Opting out of IBM Telemetry data collection](https://github.com/ibm-telemetry/telemetry-js/tree/main#opting-out-of-ibm-telemetry-data-collection). For more information on the data being collected, please see the [IBM Telemetry documentation](https://github.com/ibm-telemetry/telemetry-js/tree/main#ibm-telemetry-collection-basics).

	Stars	Issues	Version	Updated	Created
@carbon/charts-react			1.15.6	7 days ago	5 years ago
@carbon/charts-svelte	855	166	1.15.7	7 hours ago	4 years ago
@carbon/charts-vue	855	166	1.11.0	10 months ago	5 years ago

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