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path: root/assets_src/js/lib/dom.js
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export function ready(fn) {
	document.addEventListener('DOMContentLoaded', (e) => {
		fn();
	}, false);
}

export function closest(el, fn) {
	if (!el) {
		return null;
	}
	while (el) {
		if (fn(el)) {
			return el;
		}
		el = el.parentNode
	}
	return null;
}

export function next(el, fn) {
	if (!el) {
		return null;
	}
	el = el.nextSibling;
	while (el) {
		if (fn(el)) {
			return el;
		}
		el = el.nextSibling;
	}
	return null;
}

export function previous(el, fn) {
	if (!el) {
		return null;
	}
	el = el.previousSibling;
	while (el) {
		if (fn(el)) {
			return el;
		}
		el = el.previousSibling;
	}
	return null;
}