hasProtocol

hasProtocol(href) returns true when href carries a scheme://, including a nested protocol like blob:http://…. It powers isAbsolute, which treats any link with a protocol as absolute. Part of pota/use/url.

Arguments

Argument	Type	Description
href	string	The URL to test.

Returns: true if the URL has a (possibly nested) protocol, false otherwise.

Examples

Detect a protocol

Absolute and nested-protocol URLs return true; rootless relative ones return false.

import { hasProtocol } from 'pota/use/url'

hasProtocol('http://local/') // true
hasProtocol('blob:http://local/') // true — nested protocol
hasProtocol('/about') // false
hasProtocol('about') // false