const a = document.createElement('a');
18. What is a cookie? Cookies are small pieces of data that work with web browsers to store information such as user preferences, login or registration data, and shopping cart contents. When someone clicks on your affiliate link, a cookie is placed on the user's computer or mobile device. That cookie is used to remember the link or ad that the visitor clicked on. Even if the user leaves your site and comes back a week later to make a purchase, you will still get credit for the sale and receive a commission it depends on the site cookies duration。safew官方版本下载对此有专业解读
。业内人士推荐同城约会作为进阶阅读
Performance tracking，更多细节参见safew官方下载
“Building is easy now. Knowing what to build, and what not to, is the hard part,” Knecht added.