const SetTransition = (element: HTMLElement, className: string, forwards: boolean, duration: number, onTransitionEnd?: () => void) => { const timeout = element.dataset.timeout; if(timeout !== undefined) { clearTimeout(+timeout); } if(forwards && className) { element.classList.add(className); } element.classList.add('animating'); element.classList.toggle('backwards', !forwards); element.dataset.timeout = '' + setTimeout(() => { delete element.dataset.timeout; if(!forwards) { element.classList.remove('backwards', className); } element.classList.remove('animating'); onTransitionEnd && onTransitionEnd(); }, duration); }; export default SetTransition;