angular-l10n

Angular localization

An Angular library to translate messages, dates and numbers.

This library is for localization of Angular 2+ apps written in TypeScript, ES6 or ES5. It allows, in addition to translation, to localize numbers and dates of your app, adding language code, country code, and optionally script code, numbering system and calendar, through Internationalization API. It also implements the validation of numbers by locales.

Sample app built with Angular Material, AoT compilation & webpack, and its source code.

Get the changelog by releases.

Angular i18n solutions

Feature	Angular Native	ngx-translate External library	angular-l10n External library
Messages	Html attribute, message ID	directive, impure pipe	directive, pure pipe
File formats	XLIFF, XMB/XTB	JSON	JSON
No bootstrap (when language changes)	no	yes	yes
Getting the translation in component class	not yet	yes	yes
Numbers	pure pipe via Intl	-	directive & pure pipe via Intl
Dates	pure pipe via Intl	-	directive & pure pipe via Intl
Validation	-	-	number validation

Installing

You can add angular-l10n to your project using npm:

npm install angular-l10n --save 

Loading

Using SystemJS configuration

System.config({
    map: {
        'angular-l10n': 'node_modules/angular-l10n/bundles/angular-l10n.umd.js'
    }
});

Angular-CLI

No need to set up anything, just import it in your code.

Rollup or webpack

No need to set up anything, just import it in your code.

Plain JavaScript

If you build apps in Angular using ES5, you can include the umd bundle in your index.html:

<script src="node_modules/angular-l10n/bundles/angular-l10n.umd.js"></script>

and use global ng.l10n namespace.

AoT compilation, Server-side prerendering & strict

This library is compatible with AoT compilation & Server-side prerendering. It also supports the strict TypeScript compiler option.

Usage

Configuration

@NgModule({
    imports: [
        ...
        HttpModule,
        LocalizationModule.forRoot()
    ],
    ...
})
export class AppModule {

    constructor(public locale: LocaleService, public translation: TranslationService) {
        this.locale.addConfiguration()
            .addLanguages(['en', 'it'])
            .setCookieExpiration(30)
            .defineDefaultLocale('en', 'US')
            .defineCurrency('USD');
        this.locale.init();

        this.translation.addConfiguration()
            .addProvider('./assets/locale-');
        this.translation.init();
    }

}

Pure pipes with Decorators

@Component({
    ...
    template: `
        <p>{{ 'Greeting' | translate:lang }}</p>

        <p>{{ today | localeDate:defaultLocale:'fullDate' }}</p>       
        <p>{{ pi | localeDecimal:defaultLocale:'1.5-5' }}</p>
        <p>{{ value | localeCurrency:defaultLocale:currency:true:'1.2-2' }}</p>
    `
})
export class HomeComponent implements OnInit {

    @Language() lang: string;
    @DefaultLocale() defaultLocale: string;
    @Currency() currency: string;

    ...
    
    ngOnInit(): void {
        //
    }

}

Directives

@Component({
    ...
    template: `
        <p translate>Greeting</p>

        <p localeDate="fullDate">{{ today }}</p>    
        <p localeDecimal="1.5-5">{{ pi }}</p>
        <p localeCurrency="1.2-2" [symbol]="true">{{ value }}</p>
    `
})
export class HomeComponent {
    ...
}

See the following documentation to learn more about all the features:

• Angular v4: quick start and library specification

• Angular v2: branch

Related projects

Angular Localization with an ASP.NET CORE MVC Service @damienbod

Building

In order to build the library if you want to contribute to it:

npm install
npm test
npm run build

To test locally the npm package:

npm run pack-lib

Then you can install it in your app to test it:

npm install [path]angular-l10n-[version].tgz

License

MIT