Code sharing of the Countdown effect of the Verification Code sent by the mobile phone implemented by jQuery _ jquery

This article mainly introduces jQuery's countdown function for sending verification codes for Mobile Phone registration. We recommend this function to you. If you need it, you can refer to it. This is a jquery-based code for countdown to verification codes sent by mobile phones. It can display the countdown to seconds in real time and verify the format of mobile phone numbers, it is a common special effect code for website registration and sending mobile phone verification codes.

Effect description:
Register a website. When we need to send a verification code to our mobile phone, we often encounter this effect:
First, check whether the mobile phone meets the format of the first 11-digit number;
If not, an error message is displayed and false is returned;
Otherwise, it is submitted to the backend. After the backend determines to receive the message, a value is returned. The sending button turns gray and counts down.

Running effect:

-------------------------------- Download the demo source code --------------------------------

The code for calculating the countdown effect of the Verification Code sent by the mobile phone implemented by jQuery is as follows:

 Countdown code for jQuery mobile phone Verification Code sending
 
 
 User Name 
 
 Mobile phoneSend verification code
 
 Verification Code 
 
Submit