You’re moving your pages from AngularJS to Angular… but you’ve got a bunch of pesky elements flagged with ng-show and/or ng-hide. Here’s how to migrate to (mostly) the same functionality in Angular.
Hot Module Replacement, often referred to as Hot Module Reloading, is a once old now brought back feature in Angular v11. The arrival of Ivy has allowed us to do so many many things, not the least of which is use HMR.