Why HttpParams doesn't work in multiple line in angular 4.3

Question

From Angular 4.3 they introduced HttpClient instead of Http. in HttpClient I can\'t use URLSearchParams for url query parameter . instead of

Answer 1

Since 5.0.0-beta.6 (2017-09-03) new feature(accept object map for HttpClient headers & params) is available.

Now we can pass object directly instead of HttpParams:

const params = {
  'a': '1',
  'b': '2'
};

this.http.get('...', { params })

or instead of HttpHeaders:

http.get('/url', {
   headers: {'My-Header': 'header value'}
})