A common use-case is when a new list item is added to an unordered list and an event should be bound to it or a script notified of the change.
The list below uses a live query to bind a click event to each list item that changes the text to read 'Clicked'. Expiring the Live Query unbinds the events.
$('ul#example1-1', 'body')
.find('a')
.livequery('click', function() {
$(this)
.text('Clicked')
.blur();
return false;
});
The list below uses a Live Query to call a function when a new list item is added. This function adds the following text to each list item: '(Updated)' and removes it when the Live Query is expired.
var matched = function() {
$(this)
.append('<small> (Updated)</small>');
};
var unmatched = function() {
$('small', this)
.remove();
};
$('#example1-2', 'body')
.find('li')
.livequery(matched, unmatched);