Show and hide html element on selected option change

Question

In a JSP page, I have a dropdown list. When the first element of the list is selected, I want a text area to show right on click. I\'m new to Javascript/Jquery, so I\'m obvi

Answer 1

You have mistake at the end of your function - remove the last );

Finally it should be:

function change(obj) {


    var selectBox = obj;
    var selected = selectBox.options[selectBox.selectedIndex].value;
    var textarea = document.getElementById("text_area");

    if(selected === '1'){
        textarea.style.display = "block";
    }
    else{
        textarea.style.display = "none";
    }
}

    

             

                                                        
            
            

              
                
                0
              
                   
                
               讨论(0)
              
                                                  
              
              

                          
             
       
          
              
                                       

     查看其它10个回答


            
                         

                    



               
            

    发布评论: