Highlight links an corresponding images on hover

问题

Working on a project an need a specific effect on the homepage. When a user hovers over the links in the nav the link is highlighted as well as the corresponding thumbnail on the page. Each of the links/thumbnails have classes an how we have it setup now is that on hover we search for the the element with the same class. Just wondering if there is a better way to go about doing this. Thanks.

(The layout of the page has the links on the left side an the thumbs in the "main" container which fills out that rest of the page)

$('#homeCatNav li a, #homeThumbsUlHolder li img').hover(function(e){
    var $thisA = $(this),
        $thisClass = $(this).attr("class");

    if (e.type.toLowerCase() === 'mouseenter') {
        $('li.imgToHighlight').find('img'+'.'+$thisClass).addClass('hoverElem');
        $('li.homeArtNameList').find('a'+'.'+$thisClass).addClass('hoverElem');             
    }
    if (e.type.toLowerCase() === 'mouseleave') {
        $('li.imgToHighlight').find('img').removeClass('hoverElem');
        $('li.homeArtNameList').find('a').removeClass('hoverElem');
    }
});

回答1:

i think you are complicating the event handler why just do it like this

$("'#homeCatNav li a, #homeThumbsUlHolder li img").hover(mouseOver, mouseOut);

function mouseOver() {
     $thisClass = $(this).attr("class");
     $('li.imgToHighlight').find('img'+'.'+$thisClass).addClass('hoverElem');
     $('li.homeArtNameList').find('a'+'.'+$thisClass).addClass('hoverElem'); 
}

function mouseOut() {
   $thisClass = $(this).attr("class");
   $('li.imgToHighlight').find('img').removeClass('hoverElem');
   $('li.homeArtNameList').find('a').removeClass('hoverElem');
}

回答2:

I would switch to "rel", but it doesn't really matter :

$('#homeCatNav li a, #homeThumbsUlHolder li img').hover(function(){
        var $thisA = $(this),
        $thisRel = $thisA.attr("rel");
        $('li.imgToHighlight').find('img[rel'+$thisRel+']').addClass('hoverElem');
        $('li.homeArtNameList').find('a[rel'+$thisRel+']').addClass('hoverElem');             
    },function(){
        $('li.imgToHighlight').find('img').removeClass('hoverElem');
        $('li.homeArtNameList').find('a').removeClass('hoverElem');
});

来源：https://stackoverflow.com/questions/6189968/highlight-links-an-corresponding-images-on-hover