JS - url search params to dictionary

all_in_one.js

let dict = Array.from(new URLSearchParams(window.location.search)).reduce(
  (d, [k, v]) => {
    d[k] = v;
    return d;
  },
  {}
);

plain.js

const a = new URLSearchParams(window.location.search);
const b = Array.from(a);
const c = b.reduce((dict, [key, value]) => {
  dict[key] = value;
  return dict;
}, {});