mirror of
https://github.com/cupcakearmy/svelte-i18n.git
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docs: ✏️ link to wiki
This commit is contained in:
Christian Kaisermann
parent
6fe6c8cca8
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node_modules
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*.log
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dist/
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coverage/
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coverage/
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docs/
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[submodule "docs"]
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path = docs
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url = git@github.com:kaisermann/svelte-i18n.wiki.git
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330
README.md
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README.md
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> **WIP document**
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# svelte-i18n
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> Internationalization for Svelte.
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<!-- [See Demo](https://svelte-i18n.netlify.com/) -->
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<!-- @import "[TOC]" {cmd="toc" depthFrom=2 depthTo=3 orderedList=false} -->
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<!-- code_chunk_output -->
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- [TODO - WIP](#todo-wip)
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- [Usage](#usage)
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- [Locale](#locale)
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- [The dictionary](#the-dictionary)
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- [Formatting](#formatting)
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- [Formatting methods](#formatting-methods)
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- [Formats](#formats)
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- [CLI](#cli)
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- [Options](#options)
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<!-- /code_chunk_output -->
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## TODO - WIP
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- [x] Maybe locale can be a promise so we can await for it on the template;
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- [ ] Wiki on github;
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- [x] Find a more flexible way to preload dictionaries so it's possible to preload partial dictionaries.
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## Usage
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`svelte-i18n` uses `stores` to keep track of the current locale, dictionary of messages and the main format function. This way, we keep everything neat, in sync and easy to use on your svelte files.
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---
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### Locale
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The `locale` store defines what is the current locale.
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```js
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import { locale, dictionary, getClientLocale } from 'svelte-i18n'
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// Set the current locale to en-US
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locale.set('en-US')
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// This is a store, so we can subscribe to its changes
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locale.subscribe(() => console.log('locale change'))
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// svelte-i18n exports a method to help getting the current client locale
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locale.set(
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getClientLocale({
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// the fallback locale, if didn't find any
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fallback: 'en-US',
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// set to 'true' to check the 'window.navigator.language'
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navigator: true,
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// set the key name to look for a locale on 'window.location.search'
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// 'example.com?locale=en-US'
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search: 'lang',
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// set the key name to look for a locale on 'window.location.hash'
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// 'example.com#locale=en-US'
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hash: 'locale',
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// define a pattern to look in the window.location.pathname. It returns the first capturing group.
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pathname: /^\/(.*?)\//,
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// define a pattern to look in the window.location.hostname. It returns the first capturing group.
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hostname: /^\/(.*?)\//,
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})
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)
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```
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If a locale with the format `xx-YY` is not found, `svelte-i18n` looks for the locale `xx` as well.
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---
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### The dictionary
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The `dictionary` store defines the dictionary of messages of all locales.
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```js
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import { locale, dictionary } from 'svelte-i18n'
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// Define a locale dictionary
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dictionary.set({
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pt: {
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message: 'Mensagem',
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'switch.lang': 'Trocar idioma',
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greeting: {
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ask: 'Por favor, digite seu nome',
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message: 'Olá {name}, como vai?',
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},
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photos:
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'Você {n, plural, =0 {não tem fotos.} =1 {tem uma foto.} other {tem # fotos.}}',
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cats: 'Tenho {n, number} {n,plural,=0{gatos}one{gato}other{gatos}}',
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},
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en: {
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message: 'Message',
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'switch.lang': 'Switch language',
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greeting: {
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ask: 'Please type your name',
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message: 'Hello {name}, how are you?',
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},
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photos:
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'You have {n, plural, =0 {no photos.} =1 {one photo.} other {# photos.}}',
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cats: 'I have {n, number} {n,plural,one{cat}other{cats}}',
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},
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})
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// It's also possible to merge the current dictionary
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// with other objets
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dictionary.update(dict => {
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dict.fr = {
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// ...french messages
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}
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return dict
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})
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```
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Each language message dictionary can be as deep as you want. Messages can also be looked up by a string represetation of it's path on the dictionary (i.e `greeting.message`).
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---
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### Formatting
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The `_`/`format` store is the actual formatter method. To use it it's simple as any other svelte store.
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```html
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<script>
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// locale is en
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import { _ } from 'svelte-i18n'
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</script>
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<input placeholder="{$_('greeting.ask')}" />
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```
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`svelte-i18n` uses `formatjs` behind the scenes, which means it supports the [ICU message format](http://userguide.icu-project.org/formatparse/messages) for interpolation, pluralization and much more.
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```html
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<div>
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{$_('greeting.message', { values: { name: 'John' }})}
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<!-- Hello John, how are you? -->
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{$_('photos', { values: { n: 0 }})}
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<!-- You have no photos. -->
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{$_('photos', { values: { n: 12} })}
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<!-- You have 12 photos. -->
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</div>
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```
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### Formatting methods
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#### `_` / `format`
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Main formatting method that formats a localized message by its `id`.
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```ts
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function(messageId: string, options?: MessageObject): string
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function(options: MessageObject): string
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interface MessageObject {
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id?: string
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locale?: string
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format?: string
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default?: string
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values?: Record<string, string | number | Date>
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}
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```
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- `id`: represents the path to a specific message;
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- `locale`: forces a specific locale;
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- `default`: the default value in case of message not found in the current locale;
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- `format`: the format to be used. See [#formats](#formats);
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- `values`: properties that should be interpolated in the message;
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You can pass a `string` as the first parameter for a less verbose way of formatting a message.
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```html
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<script>
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import { _ } from 'svelte-i18n'
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</script>
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<div>{$_('greeting.ask')}</div>
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<!-- Please type your name -->
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<div>{$_({ id: 'greeting.ask' })}</div>
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<!-- Please type your name -->
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```
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The formatter method also provides some casing utilities:
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- `_.upper` - transforms a localized message into uppercase;
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- `_.lower` - transforms a localized message into lowercase;
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- `_.capital` - capitalize a localized message;
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- `_.title` - transforms the message into title case;
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```html
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<div>{$_.upper('greeting.ask')}</div>
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<!-- PLEASE TYPE YOUR NAME -->
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<div>{$_.lower('greeting.ask')}</div>
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<!-- please type your name -->
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<div>{$_.capital('greeting.ask')}</div>
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<!-- Please type your name -->
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<div>{$_.title('greeting.ask')}</div>
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<!-- Please Type Your Name -->
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```
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#### `_.time`
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Formats a date object into a time string with the specified format (`short`, `medium`, `long`, `full`). Please refer to the [#formats](#formats) section to see available formats.
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```ts
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function(time: Date, options: MessageObject): string
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```
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```html
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<div>{$_.time(new Date(2019, 3, 24, 23, 45))}</div>
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<!-- 11:45 PM -->
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<div>{$_.time(new Date(2019, 3, 24, 23, 45), { format: 'medium' } )}</div>
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<!-- 11:45:00 PM -->
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```
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#### `_.date`
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Formats a date object into a string with the specified format (`short`, `medium`, `long`, `full`). Please refer to the [#formats](#formats) section to see available formats.
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```ts
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function(date: Date, options: MessageObject): string
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```
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```html
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<div>{$_.date(new Date(2019, 3, 24, 23, 45))}</div>
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<!-- 4/24/19 -->
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<div>{$_.date(new Date(2019, 3, 24, 23, 45), { format: 'medium' } )}</div>
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<!-- Apr 24, 2019 -->
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```
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#### `_.number`
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Formats a number with the specified locale and format. Please refer to the [#formats](#formats) section to see available formats.
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```ts
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function(number: number, options: MessageObject): string
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```
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```html
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<div>{$_.number(100000000)}</div>
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<!-- 100,000,000 -->
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<div>{$_.number(100000000, { locale: 'pt' })}</div>
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<!-- 100.000.000 -->
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```
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### Formats
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`svelte-i18n` comes with a set of default `number`, `time` and `date` formats:
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**Number:**
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- `currency`: `{ style: 'currency' }`
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- `percent`: `{ style: 'percent' }`
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- `scientific`: `{ notation: 'scientific' }`
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- `engineering`: `{ notation: 'engineering' }`
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- `compactLong`: `{ notation: 'compact', compactDisplay: 'long' }`
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- `compactShort`: `{ notation: 'compact', compactDisplay: 'short' }`
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**Date:**
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- `short`: `{ month: 'numeric', day: 'numeric', year: '2-digit' }`
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- `medium`: `{ month: 'short', day: 'numeric', year: 'numeric' }`
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- `long`: `{ month: 'long', day: 'numeric', year: 'numeric' }`
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- `full`: `{ weekday: 'long', month: 'long', day: 'numeric', year: 'numeric' }`
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**Time:**
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- `short`: `{ hour: 'numeric', minute: 'numeric' }`
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- `medium`: `{ hour: 'numeric', minute: 'numeric', second: 'numeric' }`
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- `long`: `{ hour: 'numeric', minute: 'numeric', second: 'numeric', timeZoneName: 'short' }`
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- `full`: `{ hour: 'numeric', minute: 'numeric', second: 'numeric', timeZoneName: 'short' }`
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It's possible to define custom format styles via the `addCustomFormats` method if you need to supply a set of options to the underlying `Intl` formatter.
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```ts
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function addCustomFormats(formatsObject: Formats): void
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interface Formats {
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number: Record<string, Intl.NumberFormatOptions>
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date: Record<string, Intl.DateTimeFormatOptions>
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time: Record<string, Intl.DateTimeFormatOptions>
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}
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```
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Please refer to the [Intl.NumberFormat](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat) and [Intl.DateTimeFormat](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat) documentations to see available formatting options.
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**Example**:
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```js
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import { addCustomFormats } from 'svelte-i18n'
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addCustomFormats({
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number: {
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EUR: {
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style: 'currency',
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currency: 'EUR',
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},
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},
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})
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```
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```html
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<div>
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{$_.number(123456.789, { format: 'EUR' })}
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</div>
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<!-- 123.456,79 € -->
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```
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## CLI
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`svelte-i18n` provides a command-line interface to extract all your messages to the `stdout` or to a specific JSON file.
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```bash
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$ svelte-i18n extract [options] <glob-pattern> [output-file]
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```
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### Options
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- `-s, --shallow` - extract all messages to a shallow object, without creating nested objects. Default: `false`.
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- `--overwrite` - overwrite the content of the `output` file instead of just appending missing properties. Default: `false`.
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- `-c, --configDir` - define the directory of a [`svelte.config.js`](https://github.com/UnwrittenFun/svelte-vscode#generic-setup) in case your svelte components need to be preprocessed.
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### [Go to documentation](https://github.com/kaisermann/svelte-i18n/wiki)
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1
docs
1
docs
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@ -1 +0,0 @@
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Subproject commit acadff6027a315e011a7157ae3b139d5e4cc3ae5
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@ -14,7 +14,6 @@
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"dependencies": {
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"compression": "^1.7.1",
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"polka": "next",
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"rollup-plugin-json": "^4.0.0",
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"sirv": "^0.4.0",
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"svelte-i18n": "^2.0.0-alpha.2"
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},
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@ -24,6 +23,7 @@
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"@babel/plugin-transform-runtime": "^7.0.0",
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"@babel/preset-env": "^7.0.0",
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"@babel/runtime": "^7.0.0",
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"@rollup/plugin-json": "^4.0.0",
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"@rollup/plugin-replace": "^2.2.0",
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"npm-run-all": "^4.1.5",
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"rollup": "^1.12.0",
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|
|
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@ -3,7 +3,7 @@ import replace from '@rollup/plugin-replace'
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import commonjs from 'rollup-plugin-commonjs'
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import svelte from 'rollup-plugin-svelte'
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import babel from 'rollup-plugin-babel'
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import json from 'rollup-plugin-json'
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import json from '@rollup/plugin-json'
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import { terser } from 'rollup-plugin-terser'
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import config from 'sapper/config/rollup.js'
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|
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@ -677,6 +677,13 @@
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resolved "https://registry.yarnpkg.com/@polka/url/-/url-1.0.0-next.7.tgz#e0f307ab768b799aa8668343ce0df6601f29b9b1"
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integrity sha512-DOQhemlNfLQ7FZ6gdThARbeIjfhdM5fIqoPtgOJkO27r8A4njwiQSqx+qbReuIHEtx3fJyjSn2spMnsAHc0rFQ==
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"@rollup/plugin-json@^4.0.0":
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version "4.0.0"
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resolved "https://registry.yarnpkg.com/@rollup/plugin-json/-/plugin-json-4.0.0.tgz#4462e83c7ad5544bef4a601a6e8450daedc4b69b"
|
||||
integrity sha512-Z65CtEVWv40+ri4CvmswyhtuUtki9yP5p0UJN/GyCKKyU4jRuDS9CG0ZuV7/XuS7zGkoajyE7E4XBEaC4GW62A==
|
||||
dependencies:
|
||||
rollup-pluginutils "^2.5.0"
|
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|
||||
"@rollup/plugin-replace@^2.2.0":
|
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version "2.2.1"
|
||||
resolved "https://registry.yarnpkg.com/@rollup/plugin-replace/-/plugin-replace-2.2.1.tgz#94af20cb3d70cccdcec991d1f97dd373936ec544"
|
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@ -1447,13 +1454,6 @@ rollup-plugin-commonjs@^10.0.0:
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resolve "^1.11.0"
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rollup-pluginutils "^2.8.1"
|
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|
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rollup-plugin-json@^4.0.0:
|
||||
version "4.0.0"
|
||||
resolved "https://registry.yarnpkg.com/rollup-plugin-json/-/rollup-plugin-json-4.0.0.tgz#a18da0a4b30bf5ca1ee76ddb1422afbb84ae2b9e"
|
||||
integrity sha512-hgb8N7Cgfw5SZAkb3jf0QXii6QX/FOkiIq2M7BAQIEydjHvTyxXHQiIzZaTFgx1GK0cRCHOCBHIyEkkLdWKxow==
|
||||
dependencies:
|
||||
rollup-pluginutils "^2.5.0"
|
||||
|
||||
rollup-plugin-node-resolve@^5.2.0:
|
||||
version "5.2.0"
|
||||
resolved "https://registry.yarnpkg.com/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-5.2.0.tgz#730f93d10ed202473b1fb54a5997a7db8c6d8523"
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|
|
|
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