firebug « selector « jQuery Q&A

1. javascript selectlist remove all options    stackoverflow.com

I have a <select> list which has been populated with several options, but want to remove those options to start again. I am using Jquery, and have tried:

$("#selectId").length = 0;

2. What does the firebug error $( mean?    stackoverflow.com

Usually, Firebug gives a half decent error message when something goes wrong or doesn't compile. In this case though, I am simply getting the following:

X: $(
$('#' + divName).emtpy(); 

3. jQuery + console (Firebug): check selector    stackoverflow.com

I'm trying to use console.log("item") to find out if my selector is correct, what is the best way to go about just trying to "trace" a selector?

console.log(my-jQuery-selector);

4. Select Result - View Wrapped Set - FireBug? Other?    forum.jquery.com