I'm using Renderer2 to render some custom elements in an Angular application. As each element is created, it is stored as a constant: const myNewElement = this.renderer2.createElement('div'); When the time comes to remove this element, I am using removeChild. This has a parameter for the parent of the node being removed: removeChild(parent: any, oldChild: any, isHostElement?: boolean | undefined) However if I set parent to null, it seems to remove oldChild from the DOM successfully and without throwing an error: this.renderer2.removeChild(null, myNewElement); // Works! Could this approach cause any potential issues? Should a parent element be specified, even if removeChild works without it? Continue reading...