Using polyfills to support new features

While Internet Explorer 11 has been deprecated for a while now, Microsoft still provides security updates and technical support. However, IE11 does not support many new features which are already working in other browsers, like Google Chrome, or which will come out in the future. That’s why it’s necessary to use polyfills if you still want your application to work in IE11.

• Add a new tsconfig-es5.app.json file.
• Update angular.json configuration.
• Run your application: ng serve --configuration es5. I recommend to add a run script in package.json for convenience.

polyfills.ts

Update the packages in polyfills.ts

/** IE10 and IE11 require the following for NgClass support on SVG elements */
import 'classlist.js';  // Run `npm install --save classlist.js`.

/** Evergreen browsers require these. **/
import 'core-js/es6/reflect';

/** IE10 and IE11 requires the following to support `@angular/animation`. ALL Firefox browsers require the following to support `@angular/animation`. **/
import 'web-animations-js';  // Run `npm install --save web-animations-js`.

angular.json

"build": {
  "builder": "@angular-devkit/build-angular:browser",
  "options": {
      ...
  },
  "configurations": {
    "production": {
        ...
    },
    "es5": {
      "tsConfig": "./tsconfig-es5.app.json"
    }
  }
},
"serve": {
  "builder": "@angular-devkit/build-angular:dev-server",
  "options": {
      ...
  },
  "configurations": {
    "production": {
     ...
    },
    "es5": {
      "browserTarget": "yourAppName:build:es5"
    }
  }
},

tsconfig-es5.app.json

{
 "extends": "./tsconfig.app.json",
 "compilerOptions": {
     "target": "es5" 
  }
}

Run your application with this ng serve --configuration es5

<div class="col-md-10 offset-md-1 col-xs-12">
          <owl-carousel [options]="{responsive:{
    '320':{
        items:1

    },
    '600':{
        items:3

    },
     '980':{
        items:4,
       nav:true,
      dots: true

    }

  }}" [items]="viewCustomObjectList" [carouselClasses]="['owl-theme', 'row', 'sliding']">

Owl carousel Angular version, Click here

Cube.js is an open source serverless analytics framework that is primarily used to build internal business intelligence tools or to add customer-facing analytics to an existing application.

A complete open source analytics platform: frontend SDKs and API backed by a fully managed analytics infrastructure.

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Our content infrastructure enables teams to power content in any digital product: website, app, or device.

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Run ng serve & get the Angular app in your system on any device in the local network with this command:

ng serve --port 5200 --open --host <your local IP>

Then in the browser of any phone/laptop connected to same network, run :5200

Thank you Joel for finding the useful info

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