imgix.js is a dependency-free JavaScript library for the browser that allows for easy integration of imgix into websites. imgix.js allows developers to easily generate responsive images using the srcset and sizes attributes, or the picture element. This lets you write a single image URL that is parsed and used to make images look great at any screen size, by using imgix to process and resize your images on the fly. imgix.js is designed to run in the browser, manipulating existing img elements on an HTML page. If you're looking for a JavaScript library that can programmatically generate imgix URLs, consider using imgix-core-js instead. Once imgix.js has been included on the page, it will automatically run once, after the DOMContentLoaded event fires. ...
...It immediately detects when an element resizes and provides accurate sizing information back to the handler. Check out the Example Playground for more information on usage and performance. The latest Resize Observer specification is not yet finalised and is subject to change. Any drastic changes to the specification will bump the major version of this library, as there will likely be breaking changes. Check the release notes for more information.