JS implements data validation and check box form submission

This time I will bring you JS to implement data verification and check box form submission. What are the precautions for JS to implement data verification and check box form submission? Here are practical cases. Let’s take a look. one time.

accomplish:

1. If the user selects at least one item, it means that the row is selected, and the data of the row is verified and the form is submitted; otherwise, it is not submitted.

html

 
 
 
  
  
  
  

 
 
 
 
   
    
     
      
      
      
      
     
    
    
     
      
      
      
      
     
     
      
      
      
      
     
    
  
商品名
单价
购买数量
香蕉
100
 
       
     
苹果
100
 
       
     
 
   
 
 
 
 
 

js

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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