Chaining filters - when having multiple filters to apply

filters.js

    const f1 = h => h.title.toLowerCase().includes(title.toLowerCase());
    const f2 = d => d.field_category.toLowerCase().includes(category.toLowerCase());
    const f3 = e => e.uid.toLowerCase().includes(author.toLowerCase());

    const filtered = nodes.filter(f1).filter(f2).filter(f3);