Günay's Coding World

if we overuse it might make our code too complex and hard to read.  The most useful feature of Compass are; sprites ,  vertical rhytm,  horiznal lists, creating vendor prefixes.  However it is still better idea to use Autoprefixer over mixins for creating vendor prefixes.  Why?  Because Autoprefixes is a process that is gonna work even if you do not use compass/sass. You do not need to learn a new code. You also can keep having tips in your IDE when you want to change something. Autoprefixer is a PostCSS plugin which parse your CSS and add vendor prefixes. Href :  https://autoprefixer.github.io/ https://fatihhayrioglu.com/browserlist-ve-autoprefixere-guncelleme/

OnDestroy() Unsubscribe from Observables and DOM events. Stop interval timers. Unregister all callbacks that this directive registered with global or application services. You risk memory leaks if you neglect to do so. EventEmitter Here are the pertinent excerpts from that  HeroDetailComponent : src/app/hero-detail.component.ts (template) template : ` <div> <img src="{{heroImageUrl}}"> <span [style.text-decoration]="lineThrough"> {{prefix}} {{hero?.name}} </span> <button (click)="delete()"> Delete </button> </div>` src/app/hero-detail.component.ts (deleteRequest) // This component makes a request but it can't actually delete a hero. deleteRequest = new EventEmitter < Hero >(); delete () { this . deleteRequest . emit ( this . hero ); } The component defines a  deleteRequest  property that returns an  EventEmitter . When the user clicks  delete , the component invokes t...