需要在悬停时更改舱位 向下倾斜
$(document).ready(function () {
$('#home i').hover(function () {
$(this).addClass('fas fa-angle-down');
}, function () {
$(this).removeClass('fas fa-angle-up');
});
});
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.1/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<a href="#home" id="home">Services <i id="angle" class="fas fa-angle-up"></i></a>
脚本
答案 0 :(得分:0)
当鼠标移到上方时,您正在添加 fa-angle-down
,而当鼠标移出时,您正在移除 fa-angle-up
。
如果要交换它们,则需要添加一个,并删除每个类的时间。
$(document).ready(function () {
$('#home i').hover(function () {
$(this).addClass('fa-angle-down').removeClass('fa-angle-up');
}, function () {
$(this).addClass('fa-angle-up').removeClass('fa-angle-down');
});
});
答案 1 :(得分:-1)
使用纯JavaScript,您可以仅使用Element.classList属性来切换此类,如下所示:
var x = document.getElementById("home");
x.addEventListener("mouseover", function(){
this.children[0].classList.add("fa-angle-down");
this.children[0].classList.remove("fa-angle-up");
})
x.addEventListener("mouseout", function(){
this.children[0].classList.add("fa-angle-up");
this.children[0].classList.remove("fa-angle-down");
})
.fa-angle-up:after{content:"up!";}.fa-angle-down:after{content:"down!";}
<a href="#home" id="home">Services <i id="angle" class="fas fa-angle-up"></i></a>
NB 上和下文本仅用于说明JavaScript的工作方式。