Display reprojected map bounds

gistfile1.txt

map.on('moveend', function(e) {
    var map = e.target;
    var bounds = map.getBounds();
    var topleft = bounds.getNorthWest();
    var bottomright = bounds.getSouthEast();

    var a = crs.project(topleft);
    var b = crs.project(bottomright);
    
    console.log({
        XMin: a.x,
        YMin: a.y,
        XMax: b.x,
        YMax: b.y
    });
});