Angular paramMap vs queryParamMap?
问题 What are the different paramMap and queryParamMap? Angular website says paramMap - An Observable that contains a map of the required and optional parameters specific to the route. The map supports retrieving single and multiple values from the same parameter. queryParamMap - An Observable that contains a map of the query parameters available to all routes. The map supports retrieving single and multiple values from the query parameter. I would like to know when I have to use with examples.