How To Clear An ASP.NET Listbox With Javascript?

I'm trying to clear all of the items in an ASP.NET listbox via javascript, but sadly document.getElementById('<%= lstNames.clientID %>').items.clear; does not work. Any idea

Solution 1:

Use jquery document.getElementById("<%= lstNames.clientID %>").empty()

or

document.getElementById("<%= lstNames.clientID %>").options.length = 0;

Solution 2:

Use:

document.getElementById("<%= lstNames.clientID %>").selectedIndex = -1; // will throw error on next if there are selected items
document.getElementById("<%= lstNames.clientID %>").options.length = 0;

or

document.getElementById("<%= lstNames.clientID %>").innerHTML = "";