Angular:如何以法语格式显示日期

编程入门行业动态更新时间:2024-10-24 22:23:23

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问题描述

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我是一个 Angular 初学者，我阅读了 Angular 的文档，对于这样一个基本的事情来说很难......我希望我的应用程序中的日期和其他内容具有法语语言环境，而不是默认的en-"美国……

I am an Angular beginner, I read the documentation of Angular, and it's hard for such an elementary thing... I want that the dates and other things in my application have the French locale, and not the default 'en-US'...

我开始阅读这个 Angular 文档，这似乎有点不完整，因为，我做了文档状态，并失败:

I started to read this Angular documentation, that seems a little bit incomplete, cause, I did the doc states, and failed:

>...\ClientApp>ng serve --configuration=fr
Configuration 'fr' could not be found in project 'ClientApp'.

好的，现在我查看日期管道上的另一个文档页面.它指出:

OK, now I look on another documentation page on the Date pipe. It states:

{{ value_expression | date [ : format [ : timezone [ : locale ] ] ] }}

但是关于如何使用 locale 的任何示例，因此，我尝试在测试应用程序中执行此操作 link，像这样{{myDate |date: 'medium': undefined : 'fr'}} 但它什么也没显示......我在控制台中有:

but ANY example on how to use the locale, so, I tried to do it in a test application link, like this {{myDate | date: 'medium': undefined : 'fr'}} but it displays nothing... I have in the console:

ERROR
Error: InvalidPipeArgument: 'Missing locale data for the locale "fr".' for pipe 'DatePipe'

我还应该做什么或安装什么才能在 Angular 中以法语格式显示日期?

what else should I do or install to display in Angular a date in the French format?

Angular CLI: 6.1.5
Node: 8.11.1
OS: win32 x64
Angular: 6.1.8

推荐答案

尝试将以下代码添加到您的应用模块

Try adding to your app module the following code

import { registerLocaleData } from '@angular/common';
import localeFr from '@angular/common/locales/fr';

// the second parameter 'fr' is optional
registerLocaleData(localeFr, 'fr');

https://angular.io/guide/i18n#i18n-pipes

然后，如果您想将此语言环境设置为默认值，则需要将 LOCALE_ID 注入令牌设置为fr"，如下所示:

Then if you want to sets this locale as default you need to set the LOCALE_ID injection token as 'fr' like that :