kopia lustrzana https://github.com/shoelace-style/shoelace
108 wiersze
4.2 KiB
Markdown
108 wiersze
4.2 KiB
Markdown
# Relative Time
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[component-header:sl-relative-time]
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Outputs a localized time phrase relative to the current date and time.
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Localization is handled by the browser's [`Intl.RelativeTimeFormat` API](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat). No language packs are required.
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```html preview
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<!-- Shoelace 2 release date 🎉 -->
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<sl-relative-time date="2020-07-15T09:17:00-04:00"></sl-relative-time>
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```
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```jsx react
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import { SlRelativeTime } from '@shoelace-style/shoelace/dist/react';
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const App = () => <SlRelativeTime date="2020-07-15T09:17:00-04:00" />;
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```
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The `date` attribute determines when the date/time is calculated from. It must be a string that [`Date.parse()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse) can interpret or a [`Date`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date) object set via JavaScript.
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?> When using strings, avoid ambiguous dates such as `03/04/2020` which can be interpreted as March 4 or April 3 depending on the user's browser and locale. Instead, always use a valid [ISO 8601 date time string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse#Date_Time_String_Format) to ensure the date will be parsed properly by all clients.
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!> The `Intl.RelativeTimeFormat` API is available [in all major browsers](https://caniuse.com/mdn-javascript_builtins_intl_relativetimeformat), but it only became available to Safari in version 14. If you need to support Safari 13, you'll need to [use a polyfill](https://github.com/catamphetamine/relative-time-format).
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## Examples
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### Keeping Time in Sync
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Use the `sync` attribute to update the displayed value automatically as time passes.
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```html preview
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<div class="relative-time-sync">
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<sl-relative-time sync></sl-relative-time>
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</div>
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<script>
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const container = document.querySelector('.relative-time-sync');
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const relativeTime = container.querySelector('sl-relative-time');
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relativeTime.date = new Date(new Date().getTime() - 60000);
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</script>
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```
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```jsx react
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import { SlRelativeTime } from '@shoelace-style/shoelace/dist/react';
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const date = new Date(new Date().getTime() - 60000);
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const App = () => <SlRelativeTime date={date} sync />;
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```
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### Formatting Styles
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You can change how the time is displayed using the `format` attribute. Note that some locales may display the same values for `narrow` and `short` formats.
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```html preview
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<sl-relative-time date="2020-07-15T09:17:00-04:00" format="narrow"></sl-relative-time><br />
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<sl-relative-time date="2020-07-15T09:17:00-04:00" format="short"></sl-relative-time><br />
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<sl-relative-time date="2020-07-15T09:17:00-04:00" format="long"></sl-relative-time>
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```
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```jsx react
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import { SlRelativeTime } from '@shoelace-style/shoelace/dist/react';
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const App = () => (
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<>
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<SlRelativeTime date="2020-07-15T09:17:00-04:00" format="narrow" />
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<br />
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<SlRelativeTime date="2020-07-15T09:17:00-04:00" format="short" />
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<br />
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<SlRelativeTime date="2020-07-15T09:17:00-04:00" format="long" />
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</>
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);
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```
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### Localization
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Use the `lang` attribute to set the desired locale.
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```html preview
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English: <sl-relative-time date="2020-07-15T09:17:00-04:00" lang="en-US"></sl-relative-time><br />
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Chinese: <sl-relative-time date="2020-07-15T09:17:00-04:00" lang="zh-CN"></sl-relative-time><br />
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German: <sl-relative-time date="2020-07-15T09:17:00-04:00" lang="de"></sl-relative-time><br />
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Greek: <sl-relative-time date="2020-07-15T09:17:00-04:00" lang="el"></sl-relative-time><br />
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Russian: <sl-relative-time date="2020-07-15T09:17:00-04:00" lang="ru"></sl-relative-time>
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```
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```jsx react
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import { SlRelativeTime } from '@shoelace-style/shoelace/dist/react';
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const App = () => (
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<>
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English: <SlRelativeTime date="2020-07-15T09:17:00-04:00" lang="en-US" />
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<br />
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Chinese: <SlRelativeTime date="2020-07-15T09:17:00-04:00" lang="zh-CN" />
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<br />
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German: <SlRelativeTime date="2020-07-15T09:17:00-04:00" lang="de" />
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<br />
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Greek: <SlRelativeTime date="2020-07-15T09:17:00-04:00" lang="el" />
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<br />
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Russian: <SlRelativeTime date="2020-07-15T09:17:00-04:00" lang="ru" />
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</>
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);
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```
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[component-metadata:sl-relative-time]
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