How to pass an array within a query string in HttpClient?

This is my array of actors:

['Elvis', 'Jane', 'Frances']


How to pass this array within a query string in HttpClient?

I tried to use:

1)

let params = new HttpParams();
params = Params.append('actors[]', ['Elvis', 'Jane', 'Frances']);
this.http.get(url, { params: Params });


let params = new HttpParams().set('actors[]', ['Elvis', 'Jane', 'Frances']);
this.http.get(url, { params: Params });


let Params = new HttpParams();
Params = Params.append('actors[]', 'Jane');
Params = Params.append('actors[]', 'Elvis');
Params = Params.append('actors[]', 'Frances');
this.http.get(url, { params: Params });


1st and 2nd snippets don't work because of TypeScript error:

[ts] Argument of type 'string[]' is not assignable to parameter of type 'string'.
​

3rd snippet sends only one item 'actors[]': 'Frances'

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