<script language="ecmascript" type="text/ecmascript">
var clientContext = null;
var oWeb = null;
var oListColl = null;
var oList = null;
function deleteList() {
clientContext = new SP.ClientContext.get_current()
oWeb = clientContext.get_web();
oListColl = oWeb.get_lists();
oList = oListColl.getByTitle('List1');
oList.deleteObject();
clientContext.executeQueryAsync(Function.createDelegate(this, this.onQuerySucceeded), Function.createDelegate(this, this.onQueryFailed));
}
function onQuerySucceeded() {
alert("List deleted successfully");
}
function onQueryFailed(sender, args) {
alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
}
</script>
<input id="btndeleteList" onclick="deleteList()" type="button" value="Delete the list"/>