mobile bookmarklet for view title attr

bm.title-attr.js

(() => {
	const onclick = e => {
		if (e.target.tagName == "A") e.preventDefault();
		const title = e.target.getAttribute("title");
		if (title) alert(title);
	};
	document.onclick = onclick;
	const docs = document.querySelectorAll("iframe");
	[].forEach.call(docs, doc => (doc.contentDocument.onclick = onclick));
})();