EventTarget.addEventListener()
to listen for 'click'
events.Node.contains()
to check if Event.target
is a descendant of element
and run callback
if not.const onClickOutside = (element, callback) => {
document.addEventListener('click', e => {
if (!element.contains(e.target)) callback();
});
};
onClickOutside('#my-element', () => console.log('Hello')); // Will log 'Hello' whenever the user clicks outside of #my-element
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