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requires-port

Check if a protocol requires a certain port number to be added to an URL.

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What is requires-port?

The `requires-port` package is a simple utility used to determine if a default port is required for a given protocol. It's particularly useful when working with URLs or networking in Node.js applications, where you might need to append a port to a hostname based on the protocol being used. This package helps in making decisions about whether to include the port in a URL string.

What are requires-port's main functionalities?

Checking if a port is required for a protocol

This feature allows you to check if a specific port is typically required for a given protocol. For standard protocols like HTTP (80) and HTTPS (443), it returns `false` indicating that the port does not need to be explicitly mentioned in a URL since it's the default. For non-standard ports or protocols, it returns `true`, suggesting that the port should be specified. The code sample demonstrates how to use `requires-port` to check for common and custom protocols.

"use strict";\nconst requiresPort = require('requires-port');\n\n// Example for HTTP\nconsole.log(requiresPort(80, 'http')); // false\n\n// Example for HTTPS\nconsole.log(requiresPort(443, 'https')); // false\n\n// Example for a custom protocol\nconsole.log(requiresPort(8080, 'my-protocol')); // true"

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Package last updated on 30 Oct 2015

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