Browser UserScript, Copy the URL and title of the current tab as a Markdown link

Copy URL and Title as Markdown.js

// ==UserScript==
// @name         Copy URL and Title as Markdown
// @namespace   Violentmonkey Scripts
// @match        *://*/*
// @version     1.1
// @author      Heejoon Lee
// @description  Copy the URL and title of the current tab as a Markdown link
// @grant        GM_setClipboard
// @grant        GM_registerMenuCommand
// @grant        GM_addStyle
// ==/UserScript==
(function() {
    'use strict';

    // Add styles for the toast
    GM_addStyle(`
        #markdown-toast {
            visibility: hidden;
            min-width: 250px;
            margin-left: -125px;
            background-color: #333;
            color: #fff;
            text-align: center;
            border-radius: 2px;
            padding: 16px;
            position: fixed;
            z-index: 9999;
            left: 50%;
            top: -50px;
            font-size: 14px;
            transition: top 0.5s, visibility 0.5s;
        }

        #markdown-toast.show {
            visibility: visible;
            top: 30px;
        }
    `);

    // Function to show toast
    function showToast(message) {
        let toast = document.getElementById("markdown-toast");
        if (!toast) {
            toast = document.createElement("div");
            toast.id = "markdown-toast";
            document.body.appendChild(toast);
        }
        toast.textContent = message;
        toast.classList.add("show");
        setTimeout(() => {
            toast.classList.remove("show");
        }, 1500);
    }

    // Function to copy the URL and title as a Markdown link
    function copyMarkdownLink() {
        const title = document.title;
        const url = window.location.href;
        const markdownLink = `[${title}](${url})`;

        // Use GM_setClipboard to copy the text to the clipboard
        GM_setClipboard(markdownLink);
        //alert('Markdown link copied to clipboard!');
        showToast('Markdown 링크가 클립보드에 복사되었습니다!');
    }

    // Function to copy title and URL in two lines
    function copyTitleAndUrl() {
        const title = document.title;
        const url = window.location.href;
        const text = `${title}\n${url}`; // 제목 + 줄바꿈 + URL
        GM_setClipboard(text);
        showToast('제목 + URL이 클립보드에 복사되었습니다!');
    }

    // Register the menu command to add a button to the userscript manager's toolbar
    GM_registerMenuCommand("Markdown 링크 복사", copyMarkdownLink);
    GM_registerMenuCommand("제목 + URL 복사", copyTitleAndUrl);
})();