/Javascript/jQuery/Animated scroll to anchor without jquery

Animated scroll to anchor without jquery

const requestAnimationFrame = window.requestAnimationFrame ||
    window.webkitRequestAnimationFrame ||
    window.mozRequestAnimationFrame ||
    window.oRequestAnimationFrame ||
    window.msRequestAnimationFrame;

function scrollTo(to) {
    const start = window.scrollY || window.pageYOffset
    const time = Date.now()
    const duration = Math.abs(start - to) / 3;

    (function step() {
        var dx = Math.min(1, (Date.now() - time) / duration)
        var pos = start + (to - start) * easeOutQuart(dx)

        window.scrollTo(0, pos)

        if (dx < 1) {
            requestAnimationFrame(step)
        }
    })()
}

Source: stackoverflow.com

Animated scroll to anchor without jquery

function animate(elem, style, unit, from, to, time, prop) {
    if (!elem) {
        return;
    }
    var start = new Date().getTime(),
        timer = setInterval(function () {
            var step = Math.min(1, (new Date().getTime() - start) / time);
            if (prop) {
                elem[style] = (from + step * (to - from))+unit;
            } else {
                elem.style[style] = (from + step * (to - from))+unit;
            }
            if (step === 1) {
                clearInterval(timer);
            }
        }, 25);
    if (prop) {
          elem[style] = from+unit;
    } else {
          elem.style[style] = from+unit;
    }
}

window.onload = function () {
    var target = document.getElementById("div5");
    animate(document.scrollingElement || document.documentElement, "scrollTop", "", 0, target.offsetTop, 2000, true);
};

Source: stackoverflow.com

Similar codes

0 vote287 views1 answer
Empty input of clone jquery
Javascript jQuery
1 vote300 views1 answer
Jquery get relative position of element
Javascript jQuery
1 vote287 views1 answer
Jquery empty ul
Javascript jQuery
1 vote289 views1 answer
Jquery detect if element has overflow
Javascript jQuery
34 votes248 views6 answers
Jquery scroll to element
Javascript jQuery
15 votes284 views6 answers
Get option value jquery
Javascript jQuery
0 vote267 views1 answer
Anonymous function jquery
Javascript jQuery
1 vote290 views1 answer
How select start from id in jquery
Javascript jQuery
4 votes302 views2 answers
How to set json type jquery ajax
Javascript jQuery
0 vote270 views1 answer
Selialize jquery
Javascript jQuery