/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 vote312 views2 answers
Jquery ui timepicker
Javascript jQuery
12 votes321 views2 answers
Call a function on load jquery
Javascript jQuery
2 votes340 views3 answers
Jquery get element tag
Javascript jQuery
0 vote344 views1 answer
Jquery random color array
Javascript jQuery
0 vote339 views1 answer
JQuery onclick not firing on dynamically inserted HTML elements
Javascript jQuery
0 vote310 views1 answer
Validation for start date and end date in jquery
Javascript jQuery
0 vote324 views1 answer
Effect jquery
Javascript jQuery
3 votes328 views1 answer
Jquery check if element has class starting with
Javascript jQuery
0 vote329 views1 answer
Jquery if class clicked
Javascript jQuery
0 vote332 views2 answers
Import $ from 'jquery'
Javascript jQuery