const container = document.querySelector('.particles'); const containerBounds = document.querySelector('.particles').getBoundingClientRect(); const DOM = { container, containerBounds, getEventOffsetCoords: (evt, containerCoords) => { const { pageX, pageY } = evt; return { evtX: (pageX - containerCoords.left), evtY: (pageY - containerCoords.top) }; } }; export default DOM;