Do not use 'new' for side effects workaround

Question

I'm dropping markers onto google map in JavaScript. The linter cries about

Do not use 'new' for side effects.

After reading through this and this Stack Overflow post I see why this is the case. In my code I am looping over a list with my restaurants and here I get above error.

I literally copied the code from documentation, which reads:

function setMarkers(map: google.maps.Map) {
  // Adds markers to the map.

  // Marker sizes are expressed as a Size of X,Y where the origin of the image
  // (0,0) is located in the top left of the image.

  // Origins, anchor positions and coordinates of the marker increase in the X
  // direction to the right and in the Y direction down.
  const image = {
    url: "https://developers.google.com/maps/documentation/javascript/examples/full/images/beachflag.png",
    // This marker is 20 pixels wide by 32 pixels high.
    size: new google.maps.Size(20, 32),
    // The origin for this image is (0, 0).
    origin: new google.maps.Point(0, 0),
    // The anchor for this image is the base of the flagpole at (0, 32).
    anchor: new google.maps.Point(0, 32),
  };
  // Shapes define the clickable region of the icon. The type defines an HTML
  // <area> element 'poly' which traces out a polygon as a series of X,Y points.
  // The final coordinate closes the poly by connecting to the first coordinate.
  const shape = {
    coords: [1, 1, 1, 20, 18, 20, 18, 1],
    type: "poly",
  };

  for (let i = 0; i < beaches.length; i++) {
    const beach = beaches[i];

    new google.maps.Marker({
      position: { lat: beach[1], lng: beach[2] },
      map,
      icon: image,
      shape: shape,
      title: beach[0],
      zIndex: beach[3],
    });
  }
}

My question is: how do I do it properly so the reference to the new object is not thrown away and my code is, simply speaking, correct? (My code follows)

 init(): void {
    const { map } = setupMap(this, this.oslo.lat, this.oslo.lng)
    this.setMarkers(map)
  }

  setMarkers(map: google.maps.Map) {
    for (let i = 0; i < this.providerList.length; i++) {
      const marker = this.providerList[i]

      new google.maps.Marker({ // error on this line
        position: { lat: marker.latitude, lng: marker.longitude },
        map,
        title: marker.name,
        // zIndex: marker[i],
      })
    }
  }

Answer 1

Depending on your linter settings, just claiming "I know what I'm doing" with the void keyword should do:

new google.maps.Marker({...})

to

void new google.maps.Marker({...})

should signify your intent to ignore the return value.