import { Component } from '@angular/core'; import { TooltipConfig } from 'ngx-bootstrap/tooltip'; // such override allows to keep some initial values export function getAlertConfig(): TooltipConfig { return Object.assign(new TooltipConfig(), { placement: 'right', container: 'body' }); } @Component({ selector: 'demo-tooltip-config', templateUrl: './config.html', providers: [{ provide: TooltipConfig, useFactory: getAlertConfig }] }) export class DemoTooltipConfigComponent {}