Javascript 平滑滚动不适用于单击

我试图在我的网站上实现平滑滚动。我有要用于滚动到元素的链接：

<nav id="page-nav" class="nav section-links">
   <button class="active" data-target="#info">Info</button>
   <button data-target="#videos">Videos</button>
   <button data-target="#stats">Statistics</button>
</nav>

这是

doscorling

功能：

function getElementY(query) {
  return window.pageYOffset + document.querySelector(query).getBoundingClientRect().top
}

function doScrolling(element, duration) {
  var duration = duration || 1000;
  var startingY = window.pageYOffset
  var elementY = getElementY(element)

  // If element is close to page's bottom then window will scroll only to some position above the element.
  var targetY = document.body.scrollHeight - elementY < window.innerHeight ? document.body.scrollHeight - window.innerHeight : elementY
  var diff = targetY - startingY
  // Easing function: easeInOutCubic
  // From: https://gist.github.com/gre/1650294
  var easing = function (t) { return t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1 }
  var start

  if (!diff) return

    // Bootstrap our animation - it will get called right before next frame shall be rendered.
    window.requestAnimationFrame(function step(timestamp) {
    if (!start) start = timestamp
    // Elapsed miliseconds since start of scrolling.
    var time = timestamp - start
        // Get percent of completion in range [0, 1].
    var percent = Math.min(time / duration, 1)
    // Apply the easing.
    // It can cause bad-looking slow frames in browser performance tool, so be careful.
    percent = easing(percent)

    window.scrollTo(0, startingY + diff * percent)

        // Proceed with animation as long as we wanted it to.
    if (time < duration) {
      window.requestAnimationFrame(step)
    }
  })
}

函数getElementY（查询）{ return window.pageYOffset+document.querySelector（query）.getBoundingClientRect（）.top } 功能文件归档（要素、持续时间）{ var持续时间=持续时间| | 1000； var startingY=window.pageYOffset var elementY=getElementY（元素） //若元素靠近页面底部，那个么窗口将只滚动到元素上方的某个位置。 var targetY=document.body.scrollHeight-elementY 您的事件侦听器正常，请参阅：

$（文档）.ready（函数（）{
var navigationLinks=document.GetElementsByCassName（'section-links'）[0].getElementsByTagName（'button'）；
Array.prototype.forEach.call（navigationLinks，child=>{
console.log（子级）；
addEventListener（'click'，function（）{console.log（“click”）}）；
});
})；

信息
视频
统计

您实际执行的操作是将doScrolling函数调用的结果附加为事件处理程序。这就是它不能按预期工作的原因

您应该将doscorling调用包装到函数中，并将目标值存储在闭包中

$（文档）.ready（函数（）{
var navigationLinks=document.GetElementsByCassName（'section-links'）[0].getElementsByTagName（'button'）；
Array.prototype.forEach.call（navigationLinks，child=>{
var target=child.getAttribute（'data-target'）；
addEventListener（'click'，函数（）{doscorling（target）}）；
});
});
函数getElementY（查询）{
return window.pageYOffset+document.querySelector（query）.getBoundingClientRect（）.top
}
功能文件归档（要素、持续时间）{
var持续时间=持续时间| | 1000；
var startingY=window.pageYOffset
var elementY=getElementY（元素）
//若元素靠近页面底部，那个么窗口将只滚动到元素上方的某个位置。
var targetY=document.body.scrollHeight-elementYfunction getElementY(query) {
  return window.pageYOffset + document.querySelector(query).getBoundingClientRect().top
}

function doScrolling(element, duration) {
  var duration = duration || 1000;
  var startingY = window.pageYOffset
  var elementY = getElementY(element)

  // If element is close to page's bottom then window will scroll only to some position above the element.
  var targetY = document.body.scrollHeight - elementY < window.innerHeight ? document.body.scrollHeight - window.innerHeight : elementY
  var diff = targetY - startingY
  // Easing function: easeInOutCubic
  // From: https://gist.github.com/gre/1650294
  var easing = function (t) { return t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1 }
  var start

  if (!diff) return

    // Bootstrap our animation - it will get called right before next frame shall be rendered.
    window.requestAnimationFrame(function step(timestamp) {
    if (!start) start = timestamp
    // Elapsed miliseconds since start of scrolling.
    var time = timestamp - start
        // Get percent of completion in range [0, 1].
    var percent = Math.min(time / duration, 1)
    // Apply the easing.
    // It can cause bad-looking slow frames in browser performance tool, so be careful.
    percent = easing(percent)

    window.scrollTo(0, startingY + diff * percent)

        // Proceed with animation as long as we wanted it to.
    if (time < duration) {
      window.requestAnimationFrame(step)
    }
  })
}