Lawrence Solution

    const sections = data.triggerPoints;
    const seo = data.seo;
    //const activeSection = [];

    t = scrollTop+ headerOffset;

    if (t < sections[0][1])
        return R.find((_seo) => $('body').hasClass(_seo.id), seo);

    var hasSEO = (_id) => R.find((_seo) =>_seo.id==_id, seo) != undefined;

    const sectionAfterT = R.filter((_section) => (t <= _section[1]), sections);
    const firstMatchTriggerPoint = R.find((_section) => hasSEO(_section[0]), sectionAfterT);
    return R.find((_seo)=>_seo.id==firstMatchTriggerPoint[0], seo)