I'm currently in the process of developing a directive for a dropdown toggle feature. Through my research, I have come across two different approaches to implement this directive. Which method would be considered the most effective practice?
Approach 1 - Utilizing @HostBinding()
@HostBinding('class.open') isOpen: boolean = false;
@HostListener('click') toggleFunc(){
this.isOpen = !this.isOpen;
}
Approach 2 - Using ElementRef and Renderer
isOpen: boolean = false;
constructor(private elementRef: ElementRef, private renderer: Renderer2){}
@HostListener('click') onToggle(){
this.isOpen = !this.isOpen;
if(this.isOpen){
this.renderer.addClass(this.elementRef.nativeElement, "open");
}
else{
this.renderer.removeClass(this.elementRef.nativeElement, "open");
}
}
While Approach 1 appears more succinct with just 3 lines of code (a hassle-free option), it raises the question of which approach is truly best practice. When creating such directives, should one opt for @HostBinding() or ElementRef/Renderer? Are there distinct use cases for each method?