Determine if an HTML element's content overflows

Question

Can I use JavaScript to check (irrespective of scrollbars) if an HTML element has overflowed its content? For example, a long div with small, fixed size, the overflow proper

Answer 1

Another way is compare the element width with its parent's width:

function checkOverflow(elem) {
    const elemWidth = elem.getBoundingClientRect().width
    const parentWidth = elem.parentElement.getBoundingClientRect().width

    return elemWidth > parentWidth
}