Copy link in markdown format. Like this: [title](url).

copy-link-markdown.user.js

// ==UserScript==
// @name          Copy link in markdown format
// @description   Copy the links on the page into a format supported by markdown, like this: [title](url)
// @author        Lifeni
// @namespace     https://github.com/Lifeni
// @include       http*://*
// @version       0.1.2
// @license       MIT
// ==/UserScript==

(() => {
    if (window.self !== window.top) {
        return;
    }

    class CopyButton extends HTMLElement {
        constructor() {
            super();
            const shadow = this.attachShadow({ mode: 'closed' });

            const copy = document.createElement('button');
            copy.setAttribute('aria-label', 'Copy link in markdown format');
            copy.setAttribute('tab-index', '-1');

            copy.addEventListener('mouseover', () => {
                copy.style.background = 'rgba(0, 0, 0, 0.8)';
            });

            copy.addEventListener('mouseout', () => {
                copy.style.width = '6px';
                copy.style.background = 'rgba(0, 0, 0, 0.05)';
            });

            copy.addEventListener('click', (e) => {
                navigator.clipboard
                    .writeText(`[${document.title}](${location.href})`)
                    .then(() => {
                        copy.style.width = '12px';
                        copy.style.background = 'rgba(0, 200, 83 ,1)';
                        setTimeout(() => {
                            copy.style.background = 'rgba(0, 0, 0, 0.05)';
                        }, 2000);
                    })
                    .catch((err) => {
                        copy.style.width = '6px';
                        copy.style.background = 'rgba(255, 87, 34, 1)';
                        console.log(err);
                    });
            });

            // Click the middle mouse button to hide the window
            copy.addEventListener('mousedown', (e) => {
                if (e.button === 1) {
                    copy.style.display = 'none';
                }
            });

            copy.style.position = "fixed";
            copy.style.zIndex = "999999";
            copy.style.width = "6px";
            copy.style.height = "24px";
            copy.style.padding = "0";
            copy.style.margin = "0";
            copy.style.left = "0";
            copy.style.top = "12px";
            copy.style.cursor = "pointer";
            copy.style.outline = "none";
            copy.style.border = "none";
            copy.style.borderRadius = "0 2px 2px 0";
            copy.style.background = "rgba(0, 0, 0, 0.05)";
            copy.style.transition = "all 0.2s";

            shadow.append(copy);
        }
    }

    customElements.define('copy-link-in-markdown-format', CopyButton);
    const wrapper = document.createElement('copy-link-in-markdown-format');
    document.querySelector('body').appendChild(wrapper);
})();