About stdlib...
We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.
The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.
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Test if a value is a URI.
To use in Observable,
isURI = require( 'https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-uri@umd/browser.js' )To vendor stdlib functionality and avoid installing dependency trees for Node.js, you can use the UMD server build:
var isURI = require( 'path/to/vendor/umd/assert-is-uri/index.js' )To include the bundle in a webpage,
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-uri@umd/browser.js"></script>If no recognized module system is present, access bundle contents via the global scope:
<script type="text/javascript">
(function () {
window.isURI;
})();
</script>Tests if a value is a URI.
var bool = isURI( 'https://google.com' );
// returns true
bool = isURI( 'ftp://ftp.is.co.za/rfc/rfc1808.txt' );
// returns true
bool = isURI( '' );
// returns false
bool = isURI( 'foo' );
// returns false
bool = isURI( null );
// returns false
bool = isURI( NaN );
// returns false
bool = isURI( true );
// returns false- For more information regarding the URI scheme, see RFC 3986 and Wikipedia.
- On the distinction between URI, URL, and URN, see The Difference Between URLs and URIs.
<!DOCTYPE html>
<html lang="en">
<body>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-uri@umd/browser.js"></script>
<script type="text/javascript">
(function () {
/* Valid */
var bool = isURI( 'http://google.com' );
// returns true
bool = isURI( 'http://localhost/' );
// returns true
bool = isURI( 'http://example.w3.org/path%20with%20spaces.html' );
// returns true
bool = isURI( 'http://example.w3.org/%20' );
// returns true
bool = isURI( 'ftp://ftp.is.co.za/rfc/rfc1808.txt' );
// returns true
bool = isURI( 'ftp://ftp.is.co.za/../../../rfc/rfc1808.txt' );
// returns true
bool = isURI( 'http://www.ietf.org/rfc/rfc2396.txt' );
// returns true
bool = isURI( 'ldap://[2001:db8::7]/c=GB?objectClass?one' );
// returns true
bool = isURI( 'mailto:John.Doe@example.com' );
// returns true
bool = isURI( 'news:comp.infosystems.www.servers.unix' );
// returns true
bool = isURI( 'tel:+1-816-555-1212' );
// returns true
bool = isURI( 'telnet://192.0.2.16:80/' );
// returns true
bool = isURI( 'urn:oasis:names:specification:docbook:dtd:xml:4.1.2' );
// returns true
/* Invalid */
// No scheme:
bool = isURI( '' );
// returns false
// No scheme:
bool = isURI( 'foo' );
// returns false
// No scheme:
bool = isURI( 'foo@bar' );
// returns false
// No scheme:
bool = isURI( '://foo/' );
// returns false
// Illegal characters:
bool = isURI( 'http://<foo>' );
// returns false
// Invalid path:
bool = isURI( 'http:////foo.html' );
// returns false
// Incomplete hex escapes...
bool = isURI( 'http://example.w3.org/%a' );
// returns false
bool = isURI( 'http://example.w3.org/%a/foo' );
// returns false
bool = isURI( 'http://example.w3.org/%at' );
// returns false
})();
</script>
</body>
</html>This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
See LICENSE.
Copyright © 2016-2024. The Stdlib Authors.