github-usernames-list.js

/**
 * Get GitHub usernames that contributed in a file.
 *
 * @author AhmadAwais <https://github.com/AhmadAwais>
 * @since 2019-04-03
 */

const usernames = [];

// Select the right data of anchor links and loop over it.
document.querySelectorAll('.link-gray-dark.no-underline').forEach(lnk => {
	// Username is the string's array's fourth item.
	usernames.push(lnk.href.split('/')[3]);
});

// Make a list like username, username without quotes.
const ctrbs = usernames.join(', ');

// Add `, ` at the start and `, ahmadawais` at the end.
const final = ', '.concat(ctrbs).concat(', ahmadawais');

// Copy to your clipboard.
copy(final);