Function map

packages/next/src/compiled/@vercel/og/index.edge.js:957–966

(xs, f)

      return keys;
    };
    function map(xs, f) {
      if (xs.map) {
        return xs.map(f);
      }
      var res = [];
      for (var i = 0; i < xs.length; i++) {
        res.push(f(xs[i], i));
      }
      return res;
    }
    function reduce(xs, f, acc) {
      if (xs.reduce) {
        return xs.reduce(f, acc);