Logo

Documentation v4.0.0

  • Home
  • Validators
  • isFQDN
Light
Dark
System

Overview

Check if the domain name is fully qualified (e.g. domain.com).

Import

import {validators} from 'metronic-extension';
const {isFQDN} = validators;

Signature

isFQDN(value: string, options?: IsFQDNOptions): boolean
Parameter Type Default Description
value string - Value to be validated.
options.requireFQDNTld boolean true If true, the TLD is required.
options.allowFQDNWildcard boolean false If true, allows domain starting with *. (e.g. *.example.com).
Returns: boolean — true if valid, false otherwise.

Example

Result: true 
<div class="mb-3">
  <label class="form-label">Input value</label>
  <input id="isFQDNInput" class="form-control form-control-solid" placeholder="Enter a domain name...">
</div>
<div>
  <span class="fw-bold">Result: </span>
  <span id="isFQDNResult" class="badge"></span>
</div>

import {validators} from 'metronic-extension';
const {isFQDN} = validators;

isFQDN('example.com');                                    // true
isFQDN('sub.domain.com');                                // true

// Without requiring TLD
isFQDN('localhost', {requireFQDNTld: false});             // true

// Allow wildcard domains
isFQDN('*.example.com', {allowFQDNWildcard: true});       // true
isFQDN('*.shop.example.com', {allowFQDNWildcard: true});  // true
Previous isDataURI Next isFQDNOrIP