getURLParameters #js #browser

getURLParameters.js

// Creates an object containing the parameters of the current URL.

// Use String.prototype.match() with an appropriate regular expression to get all key-value pairs.
// Use Array.prototype.reduce() to map and combine them into a single object.
// Pass location.search as the argument to apply to the current url.

const getURLParameters = url =>
(url.match(/([^?=&]+)(=([^&]*))/g) || []).reduce(
  (a, v) => (
    (a[v.slice(0, v.indexOf('='))] = v.slice(v.indexOf('=') + 1)), a
  ),
  {}
);

// Examples
getURLParameters('google.com'); // {}
getURLParameters('http://url.com/page?name=Adam&surname=Smith'); // {name: 'Adam', surname: 'Smith'}