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README.md	1 KB	-rw-r--r--
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Code Editor : README.md

# isurl [![NPM Version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url]

> Checks whether a value is a WHATWG [`URL`](https://developer.mozilla.org/en/docs/Web/API/URL).

Works cross-realm/iframe and despite @@toStringTag.

## Installation

[Node.js](http://nodejs.org/) `>= 4` is required. To install, type this at the command line:
```shell
npm install isurl
```

## Usage

```js
const isURL = require('isurl');

isURL('http://domain/');  //-> false
isURL(new URL('http://domain/'));  //-> true
```

Optionally, acceptance can be extended to incomplete `URL` implementations that lack `searchParams` (which are common in many modern web browsers):
```js
const url = new URL('http://domain/?query');

console.log(url.searchParams);  //-> undefined

isURL.lenient(url);  //-> true
```

[npm-image]: https://img.shields.io/npm/v/isurl.svg
[npm-url]: https://npmjs.org/package/isurl
[travis-image]: https://img.shields.io/travis/stevenvachon/isurl.svg
[travis-url]: https://travis-ci.org/stevenvachon/isurl

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Code Editor : README.md