Jquery no-refreshing verification email address implementation instance _ jquery

The principle is very simple. After the user enters the mailbox and leaves, we use jqueryajax to send data to mail. PHP file, and then it is used to find whether the mailbox is in the database and then feedback the corresponding information. Now, at the time of development. The email address must be verified by the user. However, if the traditional js node is used, you need to clear the browser cache for normal verification. So you can use jquery to write a refresh-free verification.

The Code is as follows: