URL Schema

The value has to a valid URL address.

This is a specialization of the AnySchema the methods used there are used in the same way as in Any Schema:

• title()
• detail()
• required()
• forbidden()
• default()
• stripEmpty()
• raw()

And the methods from String Schema:

• makeString()
• trim
• replace()
• lowerCase()
• upperCase()
• alphaNum
• hex
• allowControls
• noHTML
• stripDisallowed
• min()
• max()
• length()
• match()
• notMatch()

1. Checking

1.1. dns

The dns flag here will trigger a dns() check on the domain part of the URL.

1.2. allow(list) / deny(list)

In principal this is identical to the any type and also valid(item) and invalid(item) may be used but the matching is a way complexer.

You can give

• protocol - http:
• protocol with host - http://alinex.de
• path - /index.html
• complete url

1.3. resolve(base)

For relative URLs this gives a base to resolve them to a full URL.

const schema = new URLSchema().resolve('https://alinex.github.io')
schema.resolve() // to remove settings

1.4. exists

Check if the URL really exists and is accessible.

const schema = new URLSchema().exists()
schema.exists() // to remove settings