js 整个屏幕上下滚动条

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

function scrollToElement(elementId) {
    const element = document.getElementById(elementId);
    if (element) {
        window.scrollTo({
            top: element.offsetTop,
            behavior: 'auto'
        });
    }
}

window.addEventListener('scroll', function() {
    console.log('当前滚动位置:', window.pageYOffset || document.documentElement.scrollTop);
});

function throttle(func, wait) {
    let timeout = null;
    return function() {
        if (!timeout) {
            timeout = setTimeout(() => {
                func.apply(this, arguments);
                timeout = null;
            }, wait);
        }
    };
}

window.addEventListener('scroll', throttle(function() {
    console.log('当前滚动位置:', window.pageYOffset || document.documentElement.scrollTop);
}, 100));