在Angular 6中,如何创建添加查询参数但不更改(可选子级)URL的链接? [英]In Angular 6, how can I create a link that adds a query parameter but doesn't change the (optional child) URL?
如何在Angular2中使用路由参数获取外部JSON数据文件? [英]How can I have an external JSON data file with my route parameters in Angular2?