In angular 2 how to preserve query params and add additional query params to route

Question

For example I am on route /cars?type=coupe and I want to navigate to the same endpoint with additional query params (but keeping existing one). I am trying some

Answer 1

There is an open issue and also already a pull request to make preserveQueryParams a router setting instead of a per navigation setting

• https://github.com/angular/angular/issues/12664
• https://github.com/angular/angular/pull/12979
• https://github.com/angular/angular/issues/13806