One common use case for capturing the URL is tracking. By capturing the URL, you can understand what pages users are visiting, how they navigate through your site, and other important user behaviors. This information can help you optimize your site and improve the user experience.
Capturing the URL can also be useful for debugging. If you’re trying to troubleshoot an issue, knowing the URL can be helpful in figuring out what went wrong. For example, if a user reports an error on a specific page, you can use the URL to reproduce the error and diagnose the problem.
window.location.href property. This property returns the entire URL of the current webpage including the protocol, domain, path, and file name.
You can retrieve only the domain name of the current url using
window.location.hostname property. This returns the domain name, without the protocol and path.
//Get current site URL var currentUrl = window.location.href; //Get current site domain name var currentDomain = window.location.hostname;
With the above code, you can easily retrieve the current URL or domain name and use it in your web application as needed.
- window.location.href: This method returns a string containing the URL of the current page. It is simple to use and works in most situations, but does not always provide the exact URL that is needed.
- window.location.protocol: This method returns the protocol (such as http or https) of the current page’s URL. It is useful in cases where only the protocol is needed.
- window.location.host: This method returns the hostname and port number of the current page’s URL. It can be useful for identifying the server on which the site is hosted.
- window.location.pathname: This method returns the path portion of the current page’s URL. It can be useful for identifying the specific page that is being viewed.
- window.location.search: This method returns the query string portion of the current page’s URL. It can be useful for passing data between pages or for identifying specific search criteria.
- Always use relative URLs when linking to internal pages of your site. This ensures that your links will continue to work even if the domain or protocol changes.
- When linking to external sites, use absolute URLs and include the protocol (e.g. http or https) to ensure that the link properly resolves and is secure.
- Be mindful of URL encoding. Use the encodeURIComponent function to encode any query string parameters or other portions of a URL that may contain special characters.
- Be cautious when using query string parameters to pass sensitive information. Avoid including authentication credentials or other sensitive data in the URL.
Updating the URL Without Reloading the Page
Extracting Data from the URL Parameters
Creating Dynamic URLs
Preventing Broken Links
Another technique for parsing and modifying URLs is using regular expressions. Regular expressions allow you to match and extract specific parts of a URL based on a predefined pattern. This can be useful for extracting query parameters, segmenting the pathname, or matching specific URL formats.
1. Displaying the Current URL in a Navigation Menu:
2. Modifying URL Parameters:
3. Generating URLs Dynamically:
4. Redirecting to Other Pages: