URL: port property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Note: This feature is available in Web Workers.
The port
property of the URL
interface is a string containing the port number of the URL. If the port is the default for the protocol (80
for ws:
and http:
, 443
for wss:
and https:
, and 21
for ftp:
), this property contains an empty string, ""
.
This property can be set to change the port of the URL. If the URL has no host
or its scheme is file:
, then setting this property has no effect. It also silently ignores invalid port numbers.
Value
A string.
Examples
// https protocol with non-default port number
new URL("https://example.com:5443/svn/Repos/").port; // '5443'
// http protocol with non-default port number
new URL("http://example.com:8080/svn/Repos/").port; // '8080'
// https protocol with default port number
new URL("https://example.com:443/svn/Repos/").port; // '' (empty string)
// http protocol with default port number
new URL("http://example.com:80/svn/Repos/").port; // '' (empty string)
// https protocol with no explicit port number
new URL("https://example.com/svn/Repos/").port; // '' (empty string)
// http protocol with no explicit port number
new URL("https://example.com/svn/Repos/").port; // '' (empty string)
// ftp protocol with non-default port number
new URL("ftp://example.com:221/svn/Repos/").port; // '221'
// ftp protocol with default port number
new URL("ftp://example.com:21/svn/Repos/").port; // '' (empty string)
Specifications
Specification |
---|
URL # dom-url-port |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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port |
Legend
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- Full support
- Full support
See also
- The
URL
interface it belongs to.