JS judgment cannot be empty example code_javascript skills

Copy code The code is as follows:

 
  
                                                                                                              {
                                                                                                                                                                return FALSE; } else if (document.form.email.value == "") {
Alert ("Content cannot be empty!")
                this.form1.eamil.focus();
                return false;
            }else form1.submit(); 
}
       
   

   
       

           
               

                   

                       
                   
               

               

                       
                           
                           
                       
                       
                           
                           
                       

                       
               
                       
               
           

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