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30-seconds-of-code/snippets/URL-parameters.md
2017-12-13 14:09:25 +02:00

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### URL parameters
Use `match()` with an appropriate regular expression to get all key-value pairs, `Array.reduce()` to map and combine them into a single object.
Pass `location.search` as the argument to apply to the current `url`.
```js
const getUrlParameters = url =>
url.match(/([^?=&]+)(=([^&]*))?/g).reduce(
(a,v) => (a[v.slice(0,v.indexOf('='))] = v.slice(v.indexOf('=')), a), {}
);
// getUrlParameters('http://url.com/page?name=Adam&surname=Smith') -> {name: 'Adam', surname: 'Smith'}
```