js屏幕滑动

let ticking = false;
window.addEventListener('scroll', function() {
    if (!ticking) {
        window.requestAnimationFrame(function() {
            // 执行滚动相关的操作
            ticking = false;
        });
        ticking = true;
    }
});

html {
    scroll-behavior: smooth;
}

function smoothScroll(target, duration) {
    var targetElement = document.querySelector(target);
    var targetPosition = targetElement.getBoundingClientRect().top;
    var startPosition = window.pageYOffset;
    var distance = targetPosition;
    var startTime = null;

    function animation(currentTime) {
        if (startTime === null) startTime = currentTime;
        var timeElapsed = currentTime - startTime;
        var run = ease(timeElapsed, startPosition, distance, duration);
        window.scrollTo(0, run);
        if (timeElapsed < duration) requestAnimationFrame(animation);
    }

    function ease(t, b, c, d) {
        t /= d / 2;
        if (t < 1) return c / 2 * t * t + b;
        t--;
        return -c / 2 * (t * (t - 2) - 1) + b;
    }

    requestAnimationFrame(animation);
}

.scrollable-element {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch; /* 提供惯性滚动 */
}