79 lines
2.8 KiB
Markdown
79 lines
2.8 KiB
Markdown
# chartjs-adapter-date-fns
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[](https://github.com/chartjs/chartjs-adapter-date-fns/releases/latest) [](https://travis-ci.org/chartjs/chartjs-adapter-date-fns) [](https://github.com/chartjs/awesome)
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## Overview
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This adapter allows the use of date-fns with Chart.js.
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Requires [Chart.js](https://github.com/chartjs/Chart.js/releases) **2.8.0** or later and [date-fns](https://date-fns.org/) **2.0.0** or later.
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**Note:** once loaded, this adapter overrides the default date-adapter provided in Chart.js (as a side-effect).
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## Installation
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### npm
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```bash
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npm install date-fns chartjs-adapter-date-fns --save
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```
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```javascript
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import { Chart } from 'chart.js';
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import 'chartjs-adapter-date-fns';
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```
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### CDN
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By default, `https://cdn.jsdelivr.net/npm/chartjs-adapter-date-fns` returns the latest (minified) version, however it's [highly recommended](https://www.jsdelivr.com/features) to always specify a version in order to avoid breaking changes. This can be achieved by appending `@{version}` to the url:
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```html
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<script src="https://cdn.jsdelivr.net/npm/chart.js/dist/chart.min.js"></script>
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<script src="https://cdn.jsdelivr.net/npm/chartjs-adapter-date-fns/dist/chartjs-adapter-date-fns.bundle.min.js"></script>
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```
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Read more about jsDeliver versioning on their [website](http://www.jsdelivr.com/).
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## Configuration
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### Locale support via scale options
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date-fns requires a date-fns locale object to be tagged on to each `format()` call, which requires the locale to be explicitly set via the `adapters.date` option: [Chart.js documentation on adapters.date](https://www.chartjs.org/docs/next/axes/cartesian/time#date-adapters)
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For example:
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```javascript
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// import date-fns locale:
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import {de} from 'date-fns/locale';
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// scale options:
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{
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adapters: {
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date: {
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locale: de
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}
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}
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}
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```
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Further, read the [Chart.js documentation](https://www.chartjs.org/docs/next) for other possible date/time related options. For example, the time scale [`time.*` options](https://www.chartjs.org/docs/next/axes/cartesian/time#configuration-options) can be overridden using the [date-fns tokens](https://date-fns.org/docs/format).
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## Development
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You first need to install node dependencies (requires [Node.js](https://nodejs.org/)):
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```bash
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> npm install
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```
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The following commands will then be available from the repository root:
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```bash
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> npm run build // build dist files
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> npm run lint // perform code linting
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```
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## License
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`chartjs-adapter-date-fns` is available under the [MIT license](LICENSE.md).
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