src/util.js
function getSiblings(el) {
    const allSiblings = getPreviousSiblings(el).concat(getNextSiblings(el));

    return allSiblings.filter(filterSibling);
}
function getSiblings(el) {
    const allSiblings = getPreviousSiblings(el).concat(getNextSiblings(el));

    return allSiblings.filter(filterSibling);
}
function getSiblings ( el ) { const allSiblings = getPreviousSiblings ( el ) . concat ( getNextSiblings ( el ) ) ; return allSiblings . filter ( filterSibling ) ; }
returns all sibling element nodes of given element
returns all sibling element nodes of given element