How to write a script reload in a script?

Question

JavaScript

On the page, when you click on a certain area, the map container block expands, and the map itself remains the same size as when the page was loaded.

How to make the script update (not the whole page) to the new dimensions?

document.getElementById('kompoziciya-25e95c19281532').onclick = function() {
        document.getElementById('map__container').classList.add('map__container--composition2');
    };

Answer 1

If this is a Yandex map, then there is a method for such a case
ymap.container.fitToViewport();