我想使用keyup事件将类添加到列表中，但是当调用keyup事件时，它会将类添加到列表中。几秒钟后，列表中的类将被删除，然后我尝试在回调函数上使用setinterval。它工作，但如果我尝试浏览列表，它表现得很有趣。
这是代码
(function(){
var AutocompleteActivities = {
init: function(config)
{
this.config = config;
$("#keywords").on("keyup", this.confirm);
},
confirm: function(e)
{
var self = AutocompleteActivities;
var con = self.config.div;
key = e.keyCode;
press = e.timeStamp
//check whether there is a key up invent in the search textfield and up or down arrow is press
if(press != "" && e.keyCode == 40 || e.keyCode == 38)
{
if(con.css("display") == "block")
{
setInterval(function(){
self.navigation(key)},500)
}
}
},
navigation: function(key)
{
var con = this.config.div, // #options - the container of the autocomplete
li = con.find("ul").find(">li"),
totalLi = li.length,
firstLi = li.first(),
current = 1; // it should be zero for debug reasons it is one
if(key == 40)
{
if(current != 0) // check whether the autoComplete selection is the first in the
{
firstLi.addClass("selection")
++current
con.find("ul li").filter(function() {
return $(this).hasClass("selection");
}).next().addClass("selection").end().removeClass("selection")
return false;
}
}
}
}
AutocompleteActivities.init({
div: $("#options"),
})
})()