Domain names and URIs are important concepts in web development. Understanding these concepts is crucial for building robust web applications.
A domain name is a readable representation of an IP address that identifies a website on the internet. For example, www.google.com is a domain name that represents the IP address 18.104.22.168.
URI, or Uniform Resource Identifier, is a string of characters that identifies a name or a resource on the internet. URIs are used to access resources like web pages, images, and videos. URIs are made up of three parts: scheme, authority, and path.
Extracting the Domain from a Full URL
To extract just the domain from a full URL, you can use the
const url = new URL('https://www.example.com/path/to/page'); const domain = url.hostname; console.log(domain); // Output: www.example.com
Splitting a Domain into Subdomains and TLD
If you need to split a domain into its subdomains and top-level domain (TLD), you can use the
const domain = 'www.example.com'; const parts = domain.split('.'); console.log(parts); // Output: ['www', 'example', 'com']
Building a URL from Component Parts
You can build a full URL from its component parts (such as the domain, protocol, path, and query string) using the
First, let’s create a regular expression for a typical URL:
- Creating dynamic pages that update based on user input or changes in the data
- Building complex navigational systems that are intuitive and easy to use
- Creating interactive interfaces that allow users to interact with data in a personalized way
- Managing complex data structures across multiple pages, and allowing users to easily navigate between them
2. Validate and sanitize inputs: Make sure that all inputs from users or other sources are properly validated and sanitized to prevent any malicious code or unauthorized access to your domain.
3. Utilize HTTPS: To ensure secure communication between your website and users, always use HTTPS protocol instead of HTTP, and make sure all domains and URIs are properly secured with SSL/TLS certificates.
4. Implement Access Control: Restrict access to domains and URIs based on user roles and permissions, and use token-based authentication to prevent unauthorized access to sensitive information.
- Create a server-side file that sends out required CORS headers
- Add the CORS headers to the response header of the server response
- Use the XMLHttpRequest object to send the HTTP request to the server
- Handle the response of the server-side request on the client-side
One major trend is the adoption of the Web Components standard, which provides a way to create reusable custom elements that encapsulate their own styles and script. This will make it easier to manage complex URI structures within a single component, reducing the likelihood of errors and simplifying development and maintenance.