javascript: set title of option in select tag with javascript

Question

I am working on a project where I have a select tag with its options being generated in a javascript function. I am currently populating the "title" attribute of each option with a detailed description.
Inside the javascript function I am currently doing something like this:

var country = new Option("countryUSA", "United States of America");
$("#mySelect").get(0).options[1]=country;

This works fine, the option shows up. However, I also need to set the "title" attribute of that html option element. I have tried something like this:

country.title="Full description of USA";

but it does not work.
I know I can do something like this:

 $("#mySelect").get(0).options[1].title="My title";

but I was trying to set the title before adding the option to the select tag. Isn't the "Option" object suppose to allow me to set the "title" property? The javascript function is not even executed. Is there no way I can set the "title" attribute for an "option" html element in javascript?

Answer 1

It looks like you're using jQuery. There is a much simpler way to do what you want. Just use the jQuery API rather than regressing back to vanilla DOM:

$('<option>',
{
    value: 'countryUSA',
    title: 'Full description of USA',
    text: 'United States of America'
}).appendTo("#mySelect");

That said, do you expect setting the title to make a browser-native tooltip to appear while the hovering over the <option>? At least in Chrome, no such tooltip will appear.

Try it yourself: http://jsfiddle.net/GMTLn/1/

---

Edit Chrome and Safari do not show a tooltip on <option>s with a title attribute because WebKit doesn't. See this bug report.

Answer 2

You can set the title attribute

   $('#mySelect').append(
   $("<option/>", { text: value }).attr("title",value)); 

Here is a working sample http://jsbin.com/ozudoTod/1/

Or this way :

     value = cleanNulls( value );
     var option = $( '<option/>', {
     title: value,
     text: value
     });
     $('#mySelect').append( option );