transducer-api-array-filter-every-slice-v2.js

const isEven = value => value % 2 === 0;

const filterPredicates = {
  // if available, checks if names equal
  author: ({ name }, { author }) => author === undefined || name === author,
  // if available, checks if date starts from a specified value
  from: ({ timestamp }, { from }) => from === undefined || from <= timestamp,
  // if available, checks if date ends with a specified value
  to: ({ timestamp }, { to }) => to === undefined || timestamp <= to
};

const filterEverySlice = (posts, filters) =>
  // iterates over posts
  posts
    // applies filters
    .filter(post =>
      // checks all filters are applied to a specified post
      Object.keys(filters).every(key => filterPredicates[key](post, filters))
    )
    // gets first filtered posts
    .slice(0, 1);

const posts = [
  {
    name: "Lorna Stiedemann",
    title: "Fugiat qui maiores illo.",
    timestamp: 1534534191881
  },
  {
    name: "Joel Will",
    title: "Ea consequatur eveniet ut qui et quae voluptatem.",
    timestamp: 1531221363376
  },
  {
    name: "Quincy Vandervort",
    title: "Rerum odit nemo in.",
    timestamp: 1535462116340
  }
];

filterEverySlice(posts, { author: "Joel Will" })                              // [{ name: 'Joel Will', title: 'Ea consequatur eveniet ut qui et quae voluptatem.', timestamp: 1531221363376 }]
filterEverySlice(posts, { author: "Joel Will", from: 0, to: 1531221363370 })  // []
filterEverySlice(posts, { from: 0, to: 1535462116340 })                       // [{ name: 'Lorna Stiedemann', title: 'Fugiat qui maiores illo.', timestamp: 1534534191881 }]