youtube-refactoring.js

youtube-refactoring.js

document.addEventListener("readystatechange", function (event) {
    // Unable to use jQuery here
    if (document.readyState == "complete") {
        var page = document.getElementById("page");
        if (!page) {
            return;
        }

        var performChanges = () => {
            var videoTitleSpan = document.getElementById("eow-title");
            if (videoTitleSpan && !videoTitleSpan.innerText.startsWith("Refactored - ")) {
                videoTitleSpan.innerText = "Refactored - " + videoTitleSpan.innerText;
            }
        };

        performChanges();

        var observer = new MutationObserver(mutations =>
            mutations.forEach(mutation => performChanges())
        );

        var config = {
            attributes: true,
            attributeFilter: ["class"]
        };

        observer.observe(page, config);
    }
});