我可以在此示例中立即调用函数，而不用匿名函数将其包装吗？

Question

I don't know how to pass $(this) in direct call

var parentLI = $("#nav .parent");

parentLI.hoverIntent(function() {
    showUL($(this));
}, function() {
    hideUL($(this));
});

Answer 1

You can give the functions by reference:

parentLI.hoverIntent(showUL, hideUL);

Then in those functions you can refer to the element which raised the event by the this keyword:

function showUL() {
   var $el = $(this);
   // do something with $el...
}