JavaScript 新手,尝试创建一个简单的程序,在单击导航项时滚动到 div。但是,它不起作用,我不明白为什么。
这是片段:
$(document).ready(function() {
alert("asda");
setBindings();
});
function setBindings() {
$("nav a").click(function(e) {
// stops the a tags for working.. i.e. clicking to another page. Functions stops the functionality.
var sectionID = e.currentTarget.id + "Section";
alert('button id ' + sectionID);
$("html body").animate({
scrollTop: $("#" + sectionID).offset().top
}, 1000)
})
})
}
<nav class="clearfix">
<div class="logo-container">
<i><h2><b>DELIVERY MOTION</b></h2></i>
</div>
<ul class="clearfix">
<li><a id="delivery" href="#">Delivery</a></li>
<li><a id="about" href="#">About Us</a></li>
<li><a href="#">Services</a></li>
<li><a href="#">FAQ</a></li>
<li><a href="#">Contact</a></li>
<li><a href="#">Login</a></li>
</ul>
<a href="#" id="pull">Menu</a>
</nav>
<div id="deliverySection">
<h1> Order anything from anywhere in Karachi instantly at your doorstep. </h1><hr>
<div id='fee-estimate-box'>
<form id='fee-estimate-form' action="#">
<legend id='delivery-text'>Delivery Fee Calculator</legend>
<span>FROM </span> <input type="text" name="firstname" value="PICKUP ADDRESS">
<span>TO </span> <input type="text" name="lastname" value="DROP ADDRESS">
<span>ESTIMATED FEE </span> <input type="text" name="estimated-fee" value="0.00 PKR">
<input class='btn-submit' type="submit" value="BOOK NOW!">
</form>
</div>
<div id='silver-bar'>
<img src='img/red-car.png' alt='fast deliver'>
</div>
</div>
<div id="aboutSection">
<h2> How it works </h2>
<div class="container">
<div class="row">
<div class="col-sm-2" id="infobox">
<img src='img/map-icon.png' width="50px" height="50px">
<h3> Search </h3>
<h4>Select pickup address </h4>
</div>
<div class="col-sm-2">
<br><br>
<img src='img/arrow-up.png' width="50px" height="50px" class='arrows-img'>
</div>
<div class="col-sm-2" id="infobox">
<img src='img/delivery-icon.png' width="50px" height="50px" class="order-icon-img">
<h3> Order</h3>
<h4>Make a booking online </h4>
</div>
<div class="col-sm-2">
<br>
<img src='img/arrow-down.png' width="50px" height="50px" class='arrows-img'>
</div>
<div class="col-sm-2" id="infobox">
<img src='img/truck-icon.png' width="50px" height="50px">
<h3> Delivered</h3>
<h4>Instant courier delivery</h4>
</div>
</div>
</div>
</div>
起初我以为问题出在我的 jquery 上,但是它工作正常。 javascript 的链接也是正确的。我尝试重新检查动画功能,但无法找出问题所在。有什么想法吗?
最佳答案
$("html body") 必须替换为 $("html,body") 才能触发滚动。 您的 JavaScript 中也有一个错误,最后还有一个“})”。 现在好了。检查您的控制台是否有此类错误,或使用片段,如您的问题所示。
$(document).ready(function() {
// alert("asda");
setBindings();
});
function setBindings() {
$("nav a").click(function(e) {
var sectionID = e.currentTarget.id + "Section";
// alert('button id ' + sectionID+ $("#" + sectionID).offset().top);
$("html,body").animate({
scrollTop: $("#" + sectionID).offset().top
}, 1000);
})
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<nav class="clearfix">
<div class="logo-container">
<i><h2><b>DELIVERY MOTION</b></h2></i>
</div>
<ul class="clearfix">
<li><a id="delivery" href="javascript:;">Delivery</a></li>
<li><a id="about" href="javascript:;">About Us</a></li>
<li><a href="javascript:;">Services</a></li>
<li><a href="javascript:;">FAQ</a></li>
<li><a href="javascript:;">Contact</a></li>
<li><a href="javascript:;/">Login</a></li>
</ul>
<a href="#" id="pull">Menu</a>
</nav>
<div id="deliverySection">
<h1> Order anything from anywhere in Karachi instantly at your doorstep. </h1><hr>
<div id='fee-estimate-box'>
<form id='fee-estimate-form' action="#">
<legend id='delivery-text'>Delivery Fee Calculator</legend>
<span>FROM </span> <input type="text" name="firstname" value="PICKUP ADDRESS">
<span>TO </span> <input type="text" name="lastname" value="DROP ADDRESS">
<span>ESTIMATED FEE </span> <input type="text" name="estimated-fee" value="0.00 PKR">
<input class='btn-submit' type="submit" value="BOOK NOW!">
</form>
</div>
<div id='silver-bar'>
<img src='img/red-car.png' alt='fast deliver'>
</div>
</div>
<div id="aboutSection">
<h2> How it works </h2>
<div class="container">
<div class="row">
<div class="col-sm-2" id="infobox">
<img src='img/map-icon.png' width="50px" height="50px">
<h3> Search </h3>
<h4>Select pickup address </h4>
</div>
<div class="col-sm-2">
<br><br>
<img src='img/arrow-up.png' width="50px" height="50px" class='arrows-img'>
</div>
<div class="col-sm-2" id="infobox">
<img src='img/delivery-icon.png' width="50px" height="50px" class="order-icon-img">
<h3> Order</h3>
<h4>Make a booking online </h4>
</div>
<div class="col-sm-2">
<br>
<img src='img/arrow-down.png' width="50px" height="50px" class='arrows-img'>
</div>
<div class="col-sm-2" id="infobox">
<img src='img/truck-icon.png' width="50px" height="50px">
<h3> Delivered</h3>
<h4>Instant courier delivery</h4>
</div>
</div>
</div>
</div>
关于javascript - 使用 jQuery 滚动页面不起作用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38801685/