Artículo completo:
jQuery .once() method for adding behaviors once
Drupal 6.x:
Drupal.behaviors.mybehavior = function(context) {
$('input.mybehavior:not(.mybehavior-processed)', context)
.addClass('mybehavior-processed')
.each(function() {
// Apply the MyBehaviour effect to the elements only once.
});
};
Drupal 7.x:
Drupal.behaviors.mybehavior = {
attach: function(context, settings) {
$('input.mybehavior', context).once('mybehavior', function() {
// Apply the MyBehaviour effect to the elements only once.
// For example
$(this).click(function() {
console.log('it works!');
});
});
}
};
