Remove the ([0-9]+) message count prefix of every notion page!

gistfile1.txt

// ==UserScript==
// @name         Remove the ([0-9]+) prefix of every notion page!
// @namespace    http://tampermonkey.net/
// @version      2025-04-15
// @description  try to make the world cleaner
// @author       You
// @match        https://*.notion.so/*
// @match        https://app.notion.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=notion.so
// @grant        none
// ==/UserScript==

(function() {
    // Get reference to the title element
    const titleElement = document.querySelector('title');

    // If there's no title element yet, create one
    if (!titleElement) {
        console.warn("TM: No title element found in document, creating one");
        const newTitle = document.createElement('title');
        newTitle.textContent = document.title;
        document.head.appendChild(newTitle);
    }

    // Function to handle title changes
    function handleTitleChange(newTitle) {
        console.log('TM: Title changed to:', newTitle);

        // Define the regex for any number (or number+) in parentheses at the start
        // ^        - start of the string
        // \(       - literal opening parenthesis
        // \d+      - one or more digits (0-9)
        // \+?      - optional literal plus sign (the '?' makes the preceding '+' optional)
        // \)       - literal closing parenthesis
        // \s*      - zero or more whitespace characters
        const notificationPrefixRegex = /^\(\d+\+?\)\s*/;

        // Check if the new title matches the pattern
        if (notificationPrefixRegex.test(newTitle)) {
            console.log('TM: Title starts with a number/notification prefix, removing it.');

            // We need to set it without the prefix, but we don't want to trigger our observer again
            // so we temporarily disconnect it
            titleObserver.disconnect();

            // Remove the matched prefix
            const cleanTitle = newTitle.replace(notificationPrefixRegex, '');
            document.title = cleanTitle;

            // Reconnect observer
            titleObserver.observe(
                document.querySelector('title'),
                { subtree: true, characterData: true, childList: true }
            );
        }
    }

    // Set up the observer
    const titleObserver = new MutationObserver(function(mutations) {
        // We're only interested in the final state after all mutations
        // and we'll check the current document.title which is the most reliable
        handleTitleChange(document.title);
    });

    // Start observing the title element for changes
    // It's important to select the title element *after* it's ensured to exist.
    const actualTitleElement = document.querySelector('title');
    if (actualTitleElement) {
        titleObserver.observe(
            actualTitleElement,
            { subtree: true, characterData: true, childList: true }
        );
    } else {
        console.error("TM: Failed to find title element for observation after attempting to create it.");
    }


    // Log initial setup
    console.log('TM: Notion - Remove notification prefix - Title monitor initialized. Current title:', document.title);
    console.log('TM: Will remove any (Number) or (Number+) prefix from the title.');

    // Also run it once on load, in case the title is already prefixed
    handleTitleChange(document.title);
})();