Append A Param Onto The Current Url

Have you ever wanted to add a parameter onto the current URL of a webpage, but weren't quite sure how to go about it? The good news is that it's actually a very straightforward process that can be done using just a few lines of code. In this article, we'll walk you through the steps to append a parameter onto the current URL using JavaScript.

Let's say you have a website and you want to add a parameter, such as a tracking ID or a session token, to the end of the current URL when a certain action occurs. This can be useful for tracking user activity, passing data between pages, or for various other purposes.

To achieve this, we can use JavaScript to manipulate the URL dynamically. Here's a simple example of how you can append a parameter called 'trackingId' with a value of '12345' onto the current URL:

// Get the current URL
let currentUrl = window.location.href;

// Check if there are existing query parameters
let separator = currentUrl.includes('?') ? '&' : '?';

// Append the new parameter onto the current URL
let newUrl = `${currentUrl}${separator}trackingId=12345`;

// Update the URL
window.history.pushState({ path: newUrl }, '', newUrl);

// Now the trackingId parameter with the value '12345' has been appended to the current URL

In this code snippet, we first get the current URL using `window.location.href`. We then check if the URL already contains query parameters by looking for the presence of a '?' character. If there are existing parameters, we use '&' as the separator, otherwise, we use '?'.

Next, we append our new parameter, 'trackingId=12345', to the end of the URL using template literals. This allows us to construct the new URL with the additional parameter.

Finally, we update the URL in the browser without reloading the page using `window.history.pushState()`. This ensures that the parameter is added to the URL without causing a full page refresh.

By following these steps, you can easily append a parameter onto the current URL using JavaScript. This technique can come in handy in various scenarios where you need to dynamically modify the URL based on user interactions or other events. Give it a try in your next web development project and see how it can enhance your website's functionality!