我正在寻找一个简单的，跨浏览器“滚动到顶部”的动画，我可以应用到一个链接。我不想需要一个JS库，如jQuery/Moo等。
// jQuery Equivilant to convert to pure JS...
$('html, body').animate({scrollTop:0}, 400);
对于那些在跳进图书馆之前应该100%学习JS的人来说，我是一个完美的例子。：(
当前回答
使用这个解决方案
animate(document.documentElement, 'scrollTop', 0, 200);
谢谢
其他回答
没有JQuery代码，希望这将帮助你。
function TopscrollTo() {
if(window.scrollY!=0)
{
setTimeout(function() {
window.scrollTo(0,window.scrollY-30);
TopscrollTo();
}, 100);
}
}
在按钮单击事件或任何其他你想要的元素/事件上调用这个TopscrollTo()函数。
window.scroll({top: 0, left: 0, behavior: 'smooth' });
从一篇关于平滑滚动的文章中得到的。
如果需要，可以使用一些填充物。
我修改了TimWolla的答案，使用二次输入-输出缓和(更流畅一点:)。下面是一个正在运行的示例:在jsFiddle上。这里提供了缓动函数:Robert Penner的缓动函数
document.getElementsByTagName('button')[0].onclick = function () {
scrollTo(document.body, 0, 1250);
}
function scrollTo(element, to, duration) {
var start = element.scrollTop,
change = to - start,
increment = 20;
var animateScroll = function(elapsedTime) {
elapsedTime += increment;
var position = easeInOut(elapsedTime, start, change, duration);
element.scrollTop = position;
if (elapsedTime < duration) {
setTimeout(function() {
animateScroll(elapsedTime);
}, increment);
}
};
animateScroll(0);
}
function easeInOut(currentTime, start, change, duration) {
currentTime /= duration / 2;
if (currentTime < 1) {
return change / 2 * currentTime * currentTime + start;
}
currentTime -= 1;
return -change / 2 * (currentTime * (currentTime - 2) - 1) + start;
}
function scrollTo(element, to, duration) {
if (duration <= 0) return;
var difference = to - element.scrollTop;
var perTick = difference / duration * 10;
setTimeout(function() {
element.scrollTop = element.scrollTop + perTick;
if (element.scrollTop === to) return;
scrollTo(element, to, duration - 10);
}, 10);
}
演示:
function runScroll() { scrollTo(document.body, 0, 600); } var scrollme; scrollme = document.querySelector("#scrollme"); scrollme.addEventListener("click",runScroll,false) function scrollTo(element, to, duration) { if (duration <= 0) return; var difference = to - element.scrollTop; var perTick = difference / duration * 10; setTimeout(function() { element.scrollTop = element.scrollTop + perTick; if (element.scrollTop == to) return; scrollTo(element, to, duration - 10); }, 10); } <p>Very long page.Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. Very long page. 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JS解决方案w/o jQuery。
element.onclick = () => window.scrollTo({ top: 0, behavior: 'smooth' })
