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export function focusPrev(el: Element | null, self = false) {
if (el == null) return;
if (!self) el = el.previousElementSibling;
if (el) {
if (el.hasAttribute('tabindex')) {
(el as HTMLElement).focus();
} else {
focusPrev(el.previousElementSibling, true);
}
}
}
export function focusNext(el: Element | null, self = false) {
if (el == null) return;
if (!self) el = el.nextElementSibling;
if (el) {
if (el.hasAttribute('tabindex')) {
(el as HTMLElement).focus();
} else {
focusPrev(el.nextElementSibling, true);
}
}
}
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