Getting started with Angular Smithchart component

11 Jul 202424 minutes to read

This section explains you the steps required to create a Smith Chart and demonstrate the basic usage of the Smith Chart control.

Setup Angular Environment

You can use Angular CLI to setup your Angular applications.
To install Angular CLI use the following command.

npm install -g @angular/cli

Create an Angular Application

Start a new Angular application using below Angular CLI command.

ng new my-app
cd my-app

Installing Syncfusion SmitchChart package

Syncfusion packages are distributed in npm as @syncfusion scoped packages. You can get all the Angular Syncfusion package from npm link.

Currently, Syncfusion provides two types of package structures for Angular components,

  1. Ivy library distribution package format
  2. Angular compatibility compiler(Angular’s legacy compilation and rendering pipeline) package.

Ivy library distribution package

Syncfusion Angular packages(>=20.2.36) has been moved to the Ivy distribution to support the Angular Ivy rendering engine and the package are compatible with Angular version 12 and above. To download the package use the below command.

Add @syncfusion/ej2-angular-charts package to the application.

npm install @syncfusion/ej2-angular-charts --save

Angular compatibility compiled package(ngcc)

For Angular version below 12, you can use the legacy (ngcc) package of the Syncfusion Angular components. To download the ngcc package use the below.

Add @syncfusion/ej2-angular-charts@ngcc package to the application.

npm install @syncfusion/ej2-angular-charts@ngcc --save

To mention the ngcc package in the package.json file, add the suffix -ngcc with the package version as below.

@syncfusion/ej2-angular-charts:"20.2.38-ngcc"

Note: If the ngcc tag is not specified while installing the package, the Ivy Library Package will be installed and this package will throw a warning.

Add SmithChart component

Modify the template in app.component.ts file to render the ej2-angular-charts component
[src/app/app.component.ts].

import { SmithchartModule } from '@syncfusion/ej2-angular-charts'
import { Component, ViewEncapsulation } from '@angular/core';

@Component({
imports: [
      SmithchartModule
    ],
    standalone: true,
    selector: 'app-root',
    // specifies the template string for the Smithchart component
    template: `<ejs-smithchart style='display: block;' id='container'></ejs-smithchart>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent  { }

Now use the app-container in the index.html instead of default one.

<app-container></app-container>

  • Now run the application in the browser using the below command.

      npm start

The below example shows a basic Smithchart.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { SmithchartModule, TooltipRenderService, SmithchartLegendService } from '@syncfusion/ej2-angular-charts'



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

@Component({
imports: [
         SmithchartModule
    ],

providers: [TooltipRenderService, SmithchartLegendService],
standalone: true,
    selector: 'app-container',
    // specifies the template string for the Smithchart component
    template: `<ejs-smithchart id="smithchart-container"  height='350px'></ejs-smithchart>`
})
export class AppComponent {

}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Module Injection

Smithchart component are segregated into individual feature-wise modules. In order to use a particular feature, you need to inject its feature service in the app.component.ts. In the current application, we are going to modify the above basic smithchart to visualize transmission lines.
For this application we are going to use tooltip and legend feature of the smithchart. Please find relevant feature service name and description as follows.

  • SmithchartLegendService - Inject this provider to use legend feature.
  • TooltipRenderService - Inject this provider to use tooltip feature.

These modules should be injected to the provider section as follows,

    import { Component } from '@angular/core';
    import { SmithchartModule } from '@syncfusion/ej2-angular-charts'
    import { SmithchartLegendService, TooltipRenderService } from '@syncfusion/ej2-angular-charts';

    @Component({
        imports: [
            BrowserModule,
        ],
        standalone: true,
        providers: [ SmithchartLegendService, TooltipRenderService ]
    })

Add Series to Smithchart

Smithchart had two type of specification for adding series.

  • dataSource - Using this, Data object can bind directly by specifying the resistance and reactance values, series add to smithchart.
  • points - Using this, collection of resistance and reactance values can bind directly to render series.

Below sample demonstrate adding two series to smithchart both ways.

  • First series Transmission1 shows dataSource bound series.
  • Second series Transmission2 shows points bound series.
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { SmithchartModule, TooltipRenderService, SmithchartLegendService } from '@syncfusion/ej2-angular-charts'




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

@Component({
imports: [
         SmithchartModule
    ],

providers: [TooltipRenderService, SmithchartLegendService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-smithchart style='display: block;' id='container' height='350px'>
    <e-seriesCollection>
        <e-series [dataSource]='seriesdata1' name='Transmission1' reactance='reactance' resistance='resistance'> </e-series>
        <e-series [points]='seriespoints' name='Transmission2'> </e-series>
    </e-seriesCollection>
    </ejs-smithchart>`
})
export class AppComponent {
    public seriesdata1: object[] = [
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0.3, reactance: 0.1 }, { resistance: 0.5, reactance: 0.2 },
        { resistance: 1.5, reactance: 0.5 }, { resistance: 2.0, reactance: 0.5 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 4.5, reactance: -0.5 }, { resistance: 5.0, reactance: -1.0 }
    ];
    public seriespoints: object[] = [
        { resistance: 0, reactance: 0.15 }, { resistance: 0, reactance: 0.15 },
        { resistance: 0, reactance: 0.15 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.5, reactance: 0.4 }, { resistance: 1.0, reactance: 0.8 },
        { resistance: 2.5, reactance: 1.3 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 3.5, reactance: 1.6 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 4.5, reactance: 2.0 }, { resistance: 6.0, reactance: 4.5 },
        { resistance: 8, reactance: 6 }, { resistance: 10, reactance: 25 }
    ];
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Add title to SmithChart

smithchart title API used to add title for smithchart. In that text API used to set text of the title.
API visible used to toggle the title.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { SmithchartModule, TooltipRenderService, SmithchartLegendService } from '@syncfusion/ej2-angular-charts'



import { Component } from '@angular/core';
import { TitleModel } from '@syncfusion/ej2-charts';

@Component({
imports: [
         SmithchartModule
    ],

providers: [TooltipRenderService, SmithchartLegendService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-smithchart style='display: block;' id='container' [title]='title' height='350px'>
    <e-seriesCollection>
        <e-series [dataSource]='seriesdata1' name='Transmission1' reactance='reactance' resistance='resistance'> </e-series>
        <e-series [points]='seriespoints' name='Transmission2'> </e-series>
    </e-seriesCollection>
    </ejs-smithchart>`
})
export class AppComponent {
    public title: TitleModel = { text: 'Transmission lines applied for both impedance and admittance' };
    public seriesdata1: object[] = [
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0.3, reactance: 0.1 }, { resistance: 0.5, reactance: 0.2 },
        { resistance: 1.5, reactance: 0.5 }, { resistance: 2.0, reactance: 0.5 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 4.5, reactance: -0.5 }, { resistance: 5.0, reactance: -1.0 }
    ];
    public seriespoints: object[] = [
        { resistance: 0, reactance: 0.15 }, { resistance: 0, reactance: 0.15 },
        { resistance: 0, reactance: 0.15 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.5, reactance: 0.4 }, { resistance: 1.0, reactance: 0.8 },
        { resistance: 2.5, reactance: 1.3 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 3.5, reactance: 1.6 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 4.5, reactance: 2.0 }, { resistance: 6.0, reactance: 4.5 },
        { resistance: 8, reactance: 6 }, { resistance: 10, reactance: 25 }
    ];
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Enable Marker to Smithchart

To use series marker and it’s customization in smithchart, use series marker. To display marker for particular series, need to specify marker visible as true. Below sample marker enabled for first series only.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { SmithchartModule, TooltipRenderService, SmithchartLegendService } from '@syncfusion/ej2-angular-charts'



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

@Component({
imports: [
         SmithchartModule
    ],

providers: [TooltipRenderService, SmithchartLegendService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-smithchart style='display: block;' id='container' [title]='title' height='350px'>
    <e-seriesCollection>
        <e-series [marker]='marker' [dataSource]='seriesdata1' name='Transmission1' reactance='reactance' resistance='resistance'></e-series>
        <e-series [points]='seriespoints' name='Transmission2'> </e-series>
    </e-seriesCollection>
    </ejs-smithchart>`
})
export class AppComponent {
    public title: object = { text: 'Transmission lines applied for both impedance and admittance' };
    public marker: object = {
        visible: true
    };
    public seriesdata1: object[] = [
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0.3, reactance: 0.1 }, { resistance: 0.5, reactance: 0.2 },
        { resistance: 1.5, reactance: 0.5 }, { resistance: 2.0, reactance: 0.5 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 4.5, reactance: -0.5 }, { resistance: 5.0, reactance: -1.0 }
    ];
    public seriespoints: object[] = [
        { resistance: 0, reactance: 0.15 }, { resistance: 0, reactance: 0.15 },
        { resistance: 0, reactance: 0.15 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.5, reactance: 0.4 }, { resistance: 1.0, reactance: 0.8 },
        { resistance: 2.5, reactance: 1.3 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 3.5, reactance: 1.6 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 4.5, reactance: 2.0 }, { resistance: 6.0, reactance: 4.5 },
        { resistance: 8, reactance: 6 }, { resistance: 10, reactance: 25 }
    ];
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Enable DataLabel to Smithchart Marker

To use marker dataLabel and it’s customization in smithchart, use marker dataLabel. To display dataLabel for particular series marker, need to specify dataLabel visible as true in that series marker. Below sample dataLabel enabled for first series.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { SmithchartModule, TooltipRenderService, SmithchartLegendService } from '@syncfusion/ej2-angular-charts'




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

@Component({
imports: [
         SmithchartModule
    ],

providers: [TooltipRenderService, SmithchartLegendService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-smithchart style='display: block;' id='container' [title]='title' height='350px'>
    <e-seriesCollection>
        <e-series [marker]='marker' [dataSource]='seriesdata1' name='Transmission1' reactance='reactance' resistance='resistance'></e-series>
        <e-series [points]='seriespoints' name='Transmission2'> </e-series>
    </e-seriesCollection>
    </ejs-smithchart>`
})
export class AppComponent {
    public title: object = { text: 'Transmission lines applied for both impedance and admittance' };
    public marker: object = {
        visible: true,
        dataLabel: {
            visible: true
        }
    };
    public seriesdata1: object[] = [
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0.3, reactance: 0.1 }, { resistance: 0.5, reactance: 0.2 },
        { resistance: 1.5, reactance: 0.5 }, { resistance: 2.0, reactance: 0.5 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 4.5, reactance: -0.5 }, { resistance: 5.0, reactance: -1.0 }
    ];
    public seriespoints: object[] = [
        { resistance: 0, reactance: 0.15 }, { resistance: 0, reactance: 0.15 },
        { resistance: 0, reactance: 0.15 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.5, reactance: 0.4 }, { resistance: 1.0, reactance: 0.8 },
        { resistance: 2.5, reactance: 1.3 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 3.5, reactance: 1.6 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 4.5, reactance: 2.0 }, { resistance: 6.0, reactance: 4.5 },
        { resistance: 8, reactance: 6 }, { resistance: 10, reactance: 25 }
    ];
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Enable Legend for Smithchart

Smithchart had a legend feature, which is used to denote the correspond series. To enable the legend, need to inject SmithchartLegendService module in the AppModule and smithchart legendSettings visible as true. Following example sample shows enabling legend for smithchart. Series name can customize using series name.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { SmithchartModule, TooltipRenderService, SmithchartLegendService } from '@syncfusion/ej2-angular-charts'




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

@Component({
imports: [
         SmithchartModule
    ],

providers: [TooltipRenderService, SmithchartLegendService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-smithchart style='display: block;' id='container' [title]='title' [legendSettings]='legendSettings' height='350px'>
    <e-seriesCollection>
        <e-series [marker]='marker' [dataSource]='seriesdata1' name='Transmission1' reactance='reactance' resistance='resistance'></e-series>
        <e-series [points]='seriespoints' name='Transmission2'> </e-series>
    </e-seriesCollection>
    </ejs-smithchart>`
})
export class AppComponent {
    public title: object = { text: 'Transmission lines applied for both impedance and admittance' };
    public marker: object = {
        visible: true,
        dataLabel: {
            visible: true
        }
    };
    public legendSettings: object = {
        visible: true
    };
    public seriesdata1: object[] = [
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0.3, reactance: 0.1 }, { resistance: 0.5, reactance: 0.2 },
        { resistance: 1.5, reactance: 0.5 }, { resistance: 2.0, reactance: 0.5 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 4.5, reactance: -0.5 }, { resistance: 5.0, reactance: -1.0 }
    ];
    public seriespoints: object[] = [
        { resistance: 0, reactance: 0.15 }, { resistance: 0, reactance: 0.15 },
        { resistance: 0, reactance: 0.15 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.5, reactance: 0.4 }, { resistance: 1.0, reactance: 0.8 },
        { resistance: 2.5, reactance: 1.3 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 3.5, reactance: 1.6 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 4.5, reactance: 2.0 }, { resistance: 6.0, reactance: 4.5 },
        { resistance: 8, reactance: 6 }, { resistance: 10, reactance: 25 }
    ];
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Enable Tooltip for Smithchart Series

Smithchart had a tooltip feature, which is used to show the current point’s values. To enable the tooltip, need to inject TooltipRenderService module in the AppModule and smithchart series tooltip visible as true. Following example sample shows enabling tooltip for smithchart series collection.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { SmithchartModule, TooltipRenderService, SmithchartLegendService } from '@syncfusion/ej2-angular-charts'



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

@Component({
imports: [
         SmithchartModule
    ],

providers: [TooltipRenderService, SmithchartLegendService],
standalone: true,
    selector: 'app-container',
    template: `<ejs-smithchart style='display: block;' id='container' [title]='title' [legendSettings]='legendSettings' height='350px'>
    <e-seriesCollection>
        <e-series [marker]='marker' [tooltip]='tooltip' [dataSource]='seriesdata1' name='Transmission1' reactance='reactance' resistance='resistance'></e-series>
        <e-series [points]='seriespoints' [tooltip]='tooltip' name='Transmission2'> </e-series>
    </e-seriesCollection>
    </ejs-smithchart>`
})
export class AppComponent {
    public title: object = { text: 'Transmission lines applied for both impedance and admittance' };
    public marker: object = {
        visible: true,
        dataLabel: {
            visible: true
        }
    };
    public tooltip: object = {
        visible: true
    };
    public legendSettings: object = {
        visible: true
    };
    public seriesdata1: object[] = [
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0, reactance: 0.05 }, { resistance: 0, reactance: 0.05 },
        { resistance: 0.3, reactance: 0.1 }, { resistance: 0.5, reactance: 0.2 },
        { resistance: 1.5, reactance: 0.5 }, { resistance: 2.0, reactance: 0.5 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 2.5, reactance: 0.4 }, { resistance: 3.5, reactance: 0.0 },
        { resistance: 4.5, reactance: -0.5 }, { resistance: 5.0, reactance: -1.0 }
    ];
    public seriespoints: object[] = [
        { resistance: 0, reactance: 0.15 }, { resistance: 0, reactance: 0.15 },
        { resistance: 0, reactance: 0.15 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.3, reactance: 0.2 }, { resistance: 0.3, reactance: 0.2 },
        { resistance: 0.5, reactance: 0.4 }, { resistance: 1.0, reactance: 0.8 },
        { resistance: 2.5, reactance: 1.3 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 3.5, reactance: 1.6 }, { resistance: 3.5, reactance: 1.6 },
        { resistance: 4.5, reactance: 2.0 }, { resistance: 6.0, reactance: 4.5 },
        { resistance: 8, reactance: 6 }, { resistance: 10, reactance: 25 }
    ];
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));