Odometer for Angular 9 that wraps on my decimal fixed version of HubSpot's Odometer: NPM/GitHub

I have created this Angular 9 version starting from the existing Ng2Odometer by Jose Andres. In this version I have upgraded the whole library to Angular 9, and I have included my fixed implementation of Hubspot's Odometer that contains an useful fix: the decimal precision passed in input to the component is now preserved during and after the animation, thus making visible also the zeroes at the end of an integer number (e.g. with a precision of 2, 1200 will be displayed as 1200.00).

This project was generated with Angular CLI version 9.1.0.

I have improved and updated the following original npm packages:

GitHub: http://github.hubspot.com/odometer/docs/welcome/

NPM: https://www.npmjs.com/package/ng2-odometer/ (credits: Jose Andres)

npm install tm-ng-odometer --save

• Setup
• Usage
• Configuration
• Demo

First you need to install the npm module:

npm install tm-ng-odometer --save

Then add the TmNgOdometerModule to the imports array of your application module.

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { TmNgOdometerModule } from 'tm-ng-odometer'; // <-- import the module
import { AppComponent} from './app.component';

@NgModule({
    imports: [
      BrowserModule, 
      TmNgOdometerModule // <-- include it in your app module
    ], 
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule {
    //
}

Use the <tm-ng-odometer></tm-ng-odometer> component to create an odometer. The number is required attribute. The number represents the limit at which the odometer will travel. The config an object with the configuration properties, this is NOT required.

@Component({
   selector: 'main-element',
   template: `
        ...
        <tm-ng-odometer [number]="number" [config]="{ }"></tm-ng-odometer>
        <!-- Further content here -->
        ...
   `
})
export class MainElementComponent {
  public number: number = 1000;
}

When on manual mode ([config]="{ auto: false }"), you can update the number attribute and that will trigger an odometer update right away. The observable is an Observable which will be used as a trigger for the odometer when on manual mode.

@Component({
   selector: 'main-element',
   template: `
        ...
        <tm-ng-odometer [number]="number" [config]="{ auto: false }" [observable]="observable"></tm-ng-odometer>
        <!-- Further content here -->
        ...
   `
})
export class MainElementComponent {
  public number: number = 1000;
  public observable: Observable<boolean>;
  private observer: Observer<boolean>;
  
  constructor() {
    this.observable = new Observable<boolean>((observer: any) => this.observer = observer).pipe(share());

    // Trigger odometer after 2s
    setTimeout(() => this.observer.next(true), 2000);
  }
}

The component accepts either a [config]="{ ... }" attribute with an object with all the configurable attribues or independent attributes for each configuration.

@Component({
   selector: 'main-element',
   template: `
        ...
        <tm-ng-odometer 
            [number]="1000" 
            [observable]="observable" 
            [config]="config"></tm-ng-odometer>
        <!-- Further content here -->

        <tm-ng-odometer 
            [number]="1000" 
            [observable]="observable"
            [config]="{ animation: 'count', format: 'd', theme: 'car', value: 50, auto: false }">
        </tm-ng-odometer>
        <!-- Further content here -->

        <tm-ng-odometer 
            [number]="1000"  
            [observable]="observable"
            [animation]="'count'"
            [format]="'d'"
            [theme]="'car'"
            [value]="0",
            [auto]="false">
        </tm-ng-odometer>
        <!-- Further content here -->
        ...
   `
})
export class MainElementComponent {
    public config = {
        animation: 'count', 
        format: 'd', 
        theme: 'car', 
        value: 50,
        auto: true,
    }

    ...
}

If you add both, the [config] and any independent configuration, the independent config will overwrite the [config] object.

The demo subfolder contains a project created with angular-cli that has been adapted to showcase the functionality of tm-ng-odometer. To execute the code follow this steps:

// Go the the demo folder
cd demo

// Install dependencies
npm install / yarn install

// Run the server
ng serve

Then go to http://localhost:4200 to check the demo running.

• Update to Angular 9
• Fixed decimal precision issues in Odometer original library

• Add tests to the library and demo
• Add new themes
• Create a Directive also

MIT