Mam taki kod:
if (sideNavVisible) {
//Hide SideNav
sideNav.style.cssText = "transform: translateX(-100%); -webkit-transition: 0.5s;";
document.getElementById("sidenav-overlay").style.cssText = "webkit-animation: fadeOut .5s ease-in 1 forwards; animation: fadeOut .5s ease-in 1 forwards; opacity: 0;";
//Remove Black Mask
document.getElementById("sidenav-overlay").remove();
} else {
chciałbym najpier wykonać wszystko do komentarza Remove Black Mask, a po wykonaniu właśnie usunąć sidenav-overlay.