url

Validate that a string is a syntactically valid URL.

Signature

NguardValidators.String.url: ValidatorFn

A parameterless validator — used directly without invocation.

Reactive forms

import { FormControl } from '@angular/forms';
import { NguardValidators } from 'ng-nguard';

const homepage = new FormControl('', [NguardValidators.String.url]);

Template-driven forms

<input ngModel name="homepage" type="url" nguardUrl />

Error key

{ url: true }

Notes

• Accepts the common shapes:
  • http://www.example.com
  • https://www.example.com
  • www.example.com
  • example.com
• Query strings and complex paths are accepted.
• Validates syntax, not reachability — use an Async validator for live checks.
• A protocol-less URL (example.com) passes. If you require a scheme, combine with regex (/^https?:\/\//).

See also

• email — sibling format check
• regex — for stricter URL shapes (scheme-required, specific TLD, etc.)