如何使用JavaScript滚动到页面顶部？滚动条立即跳到页面顶部也是可取的，因为我不希望实现平滑滚动。
当前回答
如果您想设置滚动动作的动画，则不需要javascript、event！
CSS:
html {
scroll-behavior: smooth;
}
HTML格式：
<html>
<body>
<a id="top"></a>
<!-- your document -->
<a href="#top">Jump to top of page</a>
</body>
</html>
其他回答
function scrolltop() {
var offset = 220;
var duration = 500;
jQuery(window).scroll(function() {
if (jQuery(this).scrollTop() > offset) {
jQuery('#back-to-top').fadeIn(duration);
} else {
jQuery('#back-to-top').fadeOut(duration);
}
});
jQuery('#back-to-top').click(function(event) {
event.preventDefault();
jQuery('html, body').animate({scrollTop: 0}, duration);
return false;
});
}
使用AplineJS和TailwindCSS返回页首：
<button
x-cloak
x-data="{scroll : false}"
@scroll.window="document.documentElement.scrollTop > 20 ? scroll = true : scroll = false"
x-show="scroll" @click="window.scrollTo({top: 0, behavior: 'smooth'})"
type="button"
data-mdb-ripple="true"
data-mdb-ripple-color="light"
class="fixed inline-block p-3 text-xs font-medium leading-tight text-white uppercase transition duration-150 ease-in-out bg-blue-600 rounded-full shadow-md hover:bg-blue-700 hover:shadow-lg focus:bg-blue-700 focus:shadow-lg focus:outline-none focus:ring-0 active:bg-blue-800 active:shadow-lg bottom-5 right-5"
id="btn-back-to-top"
x-transition.opacity
>
<svg xmlns="http://www.w3.org/2000/svg" class="w-4 h-4" viewBox="0 0 20 20" fill="currentColor">
<path fill-rule="evenodd" d="M3.293 9.707a1 1 0 010-1.414l6-6a1 1 0 011.414 0l6 6a1 1 0 01-1.414 1.414L11 5.414V17a1 1 0 11-2 0V5.414L4.707 9.707a1 1 0 01-1.414 0z" clip-rule="evenodd" />
</svg>
</button>
document.getElementById（“elem”）scrollIntoView（）；
尝试此操作以在顶部滚动
<script>
$(document).ready(function(){
$(window).scrollTop(0);
});
</script>
document.getElementsByTagName('html')[0].scrollIntoView({ behavior: "smooth" });
