renderer4.ts

ngAfterContentInit() {
    let buttonElement = this.renderer.createElement(this.nativeElement, "button");
    this.renderer.createText(buttonElement, "Click me!");
    this.renderer.setElementProperty(buttonElement, "disabled", true);
    this.renderer.listen(buttonElement, "click", ( event ) => console.log(event));
    this.renderer.setElementClass(buttonElement, "btn-large", true);
    this.renderer.setElementStyle(buttonElement, "backgroundColor", "yellow");
}