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>

试试这个

<script>
    $(window).scrollTop(100);
</script>

滚动到带有动画的页面顶部：

window.scrollTo({ top: 0, behavior: 'smooth' });

尝试此操作以在顶部滚动

<script>
 $(document).ready(function(){
    $(window).scrollTop(0);
});
</script>

只需尝试，不需要其他插件/框架

document.getElementById（“jarscoolbtn”）.addEventListener（“单击”，jarsrollfunction）；函数jarrollfunction（）{var body=document.body；//对于Safarivar html=document.documentElement；//Chrome、Firefox、IE和Operabody.scrollTop=0；html.scrollTop=0；}<button id=“jarscoolbtn”>滚动内容</button>html，正文{滚动行为：平滑；}

非jQuery解决方案/纯JavaScript：

document.body.scrollTop = document.documentElement.scrollTop = 0;