jquery 屏幕滚动

$(window).scroll(function() {
    console.log('用户正在滚动页面');
});

$('a[href^="#"]').click(function(event) {
    event.preventDefault();
    var target = $(this.hash);
    $('html, body').animate({
        scrollTop: target.offset().top
    }, 800);
});

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

$(window).scroll(throttle(function() {
    console.log('用户正在滚动页面');
}, 200));

function debounce(func, wait) {
    let timeout;
    return function() {
        clearTimeout(timeout);
        timeout = setTimeout(() => {
            func.apply(this, arguments);
        }, wait);
    };
}

$(window).scroll(debounce(function() {
    console.log('用户正在滚动页面');
}, 200));