Node.js | urlObject.host API

Node.js's urlObject.host API is a part of the built-in url module, which allows developers to work with URLs in their code. This feature provides an easy way to extract or modify the host name and port number from a URL string.

Syntax

urlObject.host

Parameters

None

Return Value

The host property returns a string that contains the hostname and, if it is not a default port, also includes the port number in the format hostname:port.

Example Usage

const url = require('url');

const urlObject = url.parse('http://example.com:8080/path/subpath');
console.log(urlObject.host); // Output: example.com:8080

In the example above, the url.parse() method is used to construct a URL object from the string http://example.com:8080/path/subpath. The urlObject.host property is then used to print the hostname and port number.

Conclusion

The Node.js | urlObject.host API proves to be handy in web development, especially when parsing URLs. The ability to extract the host name and port number separately can be very useful for various purposes such as debugging, logging, and more.