ArticleZip > Matchmedia Addlistener Marked As Deprecated Addeventlistener Equivalent

Matchmedia Addlistener Marked As Deprecated Addeventlistener Equivalent

If you've been working on web development, you may have come across the term `matchMedia.addListener()` being marked as deprecated in the developer documentation. But fear not, as there is an equivalent method that you can use to achieve the same functionality: `addEventListener()`.

In the past, developers have commonly used `matchMedia.addListener()` to respond to changes in the media query. This method allowed them to dynamically adjust styles or behavior based on the user's device or screen size. However, with the deprecation of `matchMedia.addListener()`, it's time to transition to the newer and more versatile `addEventListener()` method.

The `addEventListener()` method can be used to register an event listener on the `resize` event of the `window` object. This event is triggered whenever the browser window is resized, making it the perfect equivalent for monitoring changes in the media query.

Here's how you can adapt your code from using `matchMedia.addListener()` to using `addEventListener()`:

Javascript

const mediaQuery = window.matchMedia('(max-width: 600px)');

function handleResize(event) {
  if (event.matches) {
    // Code to execute when the media query matches
  } else {
    // Code to execute when the media query doesn't match
  }
}

mediaQuery.addListener(handleResize); // Old way using matchMedia.addListener()

window.addEventListener('resize', () => {
  if (mediaQuery.matches) {
    // Code to execute when the media query matches
  } else {
    // Code to execute when the media query doesn't match
  }
}); // New way using addEventListener()

By utilizing `addEventListener()` for monitoring the `resize` event, you can maintain the functionality of dynamically responding to changes in the media query without relying on the deprecated `matchMedia.addListener()` method.

It's important to note that `addEventListener()` provides a more robust approach to event handling in general. By embracing this method for monitoring media query changes, you are aligning your code with best practices and ensuring compatibility with future updates in web standards.

In conclusion, if you've been using `matchMedia.addListener()` in your projects and have noticed it being marked as deprecated, now is the time to make the switch to `addEventListener()`. By following the outlined steps and adapting your code accordingly, you can continue to create responsive and dynamic web experiences while staying up-to-date with modern web development practices.