Complete JavaScript code for Form Verification

Use native JS to write a simple form verification function. The code is divided into html and js parts. The code is easy to understand and can be used for reference, for more information, see <G id = "1"> use native JS to write a simple form verification function. The code is divided into html and js sections. The code is simple and easy to understand. It has reference value. If you need it, refer

Write a simple form verification using native JS

First, the html section

    
New User Registration
    
Basic Information
         
  

Then, add the CSS style to it.

The last part is the JS part.