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Test if a value is a URI.
import isURI from 'https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-uri@deno/mod.js';
Tests if a value
is a URI.
var bool = isURI( 'https://google.com' );
// returns true
bool = isURI( 'ftp:https://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.
import isURI from 'https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-uri@deno/mod.js';
/* Valid */
var bool = isURI( 'https://google.com' );
// returns true
bool = isURI( 'https://localhost/' );
// returns true
bool = isURI( 'https://example.w3.org/path%20with%20spaces.html' );
// returns true
bool = isURI( 'https://example.w3.org/%20' );
// returns true
bool = isURI( 'ftp:https://ftp.is.co.za/rfc/rfc1808.txt' );
// returns true
bool = isURI( 'ftp:https://ftp.is.co.za/../../../rfc/rfc1808.txt' );
// returns true
bool = isURI( 'https://www.ietf.org/rfc/rfc2396.txt' );
// returns true
bool = isURI( 'ldap:https://[2001:db8::7]/c=GB?objectClass?one' );
// returns true
bool = isURI( 'mailto:[email protected]' );
// returns true
bool = isURI( 'news:comp.infosystems.www.servers.unix' );
// returns true
bool = isURI( 'tel:+1-816-555-1212' );
// returns true
bool = isURI( 'telnet:https://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( ':https://foo/' );
// returns false
// Illegal characters:
bool = isURI( 'https://<foo>' );
// returns false
// Invalid path:
bool = isURI( 'https:////foo.html' );
// returns false
// Incomplete hex escapes...
bool = isURI( 'https://example.w3.org/%a' );
// returns false
bool = isURI( 'https://example.w3.org/%a/foo' );
// returns false
bool = isURI( 'https://example.w3.org/%at' );
// returns false
This package is part of stdlib, a standard library 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.
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