var options = { attributes: { rel: 'nofollow', title: 'click to open', }, className: '', format: { url: function (value) { return value } }, ignoreTags: ['a'], validate: { url: function (value) { return value; } } }; var str = `It took him the rest of the second day to finish installing the new sink in the kitchen. It turned out to be a very complicated operation. `; document.write(linkifyHtml(str, options)); ]]>