@code-art-eg/angular-globalize

About the library

The @code-art-eg/angular-globalize library is a javascript library that provides pipes for date, number and currency formatting for Angular 17. It also provides services for parsing and formatting dates and numbers as well as setting the current culture. It depends on and leverages the globalize javascript library for performing this.

Consuming the library

1. Installing the library

To install the library in your Angular application you need to run the following commands:

$ ng add @code-art-eg/angular-globalize

Note: Since version 3.x of this library was rewritten, Versions 1.x and 2.x of the library available on npmjs are not compatible with this version.

Note 2: Starting from version 8, the major version numbers of the library now follows the major angular version supported.

2. Use the library pipes in your components

Once the library is imported and cldr data is loaded, you can use its components, directives and pipes in your Angular application:

<!-- You can now use the library component in app.component.html -->
<h1>
  {{title}}
</h1>
Short Date (current culture): {{ jsDate | gdate }} <br/><!-- example output 10/02/2018 using en-GB -->
Short time (current culture): {{ jsDate | gtime }} <br/><!-- example output 13:49 using en-GB -->
Short date/time (current culture): {{ jsDate | gdatetime }} <br/><!-- example output 10/02/2018, 13:49 using en-GB-->
Short Date (German Germany): {{ jsDate | gdate:'de' }} <br/><!-- example output 10.02.18 -->
Full Date (Arabic Egypt):  {{ jsDate | gdatetime:'ar-EG':'full' }} <br/><!-- example output السبت، ١٠ فبراير ٢٠١٨ ١:٤٩:٢٠ م غرينتش+٠٢:٠٠ -->
Full Date (Current culture): {{ jsDate | gdatetime:'full' }} <br/><!-- example output Saturday, 10 February 2018 at 13:49:20 GMT+02:00 using en-GB -->
Custom Date Format (Current culture): {{ jsDate | gdatetime:'raw:yyyy-MM-dd' }} <br/><!-- example output 2018-02-10 -->
Custom Date Format (Current culture): {{ jsDate | gdatetime:'yQQQHm' }} <br/><!-- example output Q1 2018, 13:49 -->
Custom Date Format (Arabic Egypt): {{ jsDate | gdatetime:'ar-EG':'yQQQHm'}} <br/><!-- example output الربع الأول ٢٠١٨ ١٣:٤٩ -->

Number Format (Current culture): {{ 1234567.98765 | gnumber }} <br/><!-- example output 1,234,567.988 -->
Percentage Format (Current culture): {{ 0.5| gnumber:'%' }} <br/><!-- example output 50% -->
Currency  Format with symbol (Current culture): {{ 1234567.98765 | gcurrency:'EUR'}} <br/><!-- example output €1,234,567.99 -->
Currency  Format with name (Arabic Egypt): {{ 1234567.98765 | gcurrency:'EGP':'ar-EG':{ style: 'name', maximumFractionDigits:3, minimumFractionDigits:3 } }} <br/><!-- example output ١٬٢٣٤٬٥٦٧٫٩٨٨ جنيه مصري -->

Getting/Setting Current Culture

By default the library will use the value provided by LOCALE_ID in Angular. If not available, it will use the browser culture. However, the current culture will always be one of the supported cultures. If the The LOCALE_ID or browser culture are not in the supported cultures, the first culture will be used as the default. To change current culture you can is the CurrentCultureService service which can be injected in your component or service.

Example:

import { Component } from '@angular/core';

import { CurrentCultureService } from '@code-art-eg/angular-globalize';

@Component({
    selector: 'app-change-culture',
    template: `
        <button (click)="changeCulture('en-GB')">English (United Kingdom)</button>
        <button (click)="changeCulture('ar-EG')">Arabic (Egypt)</button>
        <button (click)="changeCulture('de')">German (Germany)</button>
    `
})
export class ChangeCultureComponent {
    constructor(public readonly cultureService: CurrentCultureService) {
    }
    
    public changeCulture(culture: string): void {
        this.cultureService.currentCulture = culture;
    }
}

In addition to the currentCulture property, the CurrentCultureService interface exposes a cultureObservable property of type Observable<string> which you can use to subscribe to current culture change events.

(Optional) Saving Culture between sessions

The component exposes CookieLocaleProviderService and StorageLocaleProviderService services. You an you can provide either one of them in your AppModule using CANG_LOCALE_PROVIDER injection token.

Example:

@NgModule({
    bootstrap: [AppComponent],
    declarations: [AppComponent, ChangeCultureComponent],
    imports: [BrowserModule,
         AngularGlobalizeModule.forRoot(['en-GB', 'de', 'ar-EG']), // Import this only in root app module
         AngularGlobalizeModule, // import this in every module where the pipes and directives are needed.
        ],
    providers: [
        { provide: CANG_LOCALE_PROVIDER, useClass: CookieLocaleProviderService, multi: true },
    ]
})
class AppModule {
    ...
}

TODO

The library needs better documentation, more samples and a demo site. In the future I plan to add support for other features exposed by Globalize such as units, messages, pluralization, etc.

License

MIT © Sherif Elmetainy (Code Art)