How to install ngSanitize?

Yes, you need to download and include it: https://github.com/angular/bower-angular-sanitize

install npm install --save angular-sanitize

import in app module import ngSanitize from "angular-sanitize";

add it to your module angular.module("app", [ngSanitize])

use in component

controller: class appController {
  constructor($sanitize) {
    this.$sanitize = $sanitize;
    this.text = this.$sanitize('text to be sanitized');
  }
}

Install bower. You want bower.

npm install -g bower

Go to your project root and install ngSanitize:

bower install angular-sanitize --save

bower install downloads the script for you. Include the JavaScript in your app:

<script src="/bower_components/angular-sanitize/angular-sanitize.js"></script>

If you want to use CDN resources without download go to https://code.angularjs.org/ and click on version you want .Will find all the various resources available there and then you can copy location straight into script tag:

<script src="//code.angularjs.org/1.2.20/angular-sanitize.min.js"></script>