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About the method of implementing single page/full screen scrolling similar to fullpage in native js
About the method of implementing single page/full screen scrolling similar to fullpage in native js
This article mainly introduces the implementation method of using native js to achieve full-screen scrolling similar to fullpage. The complete example code is given in the article. I believe it has certain reference value for everyone's understanding and learning. Friends in need can refer to it. For reference, let’s take a look below.
Preface
Single-page/full-screen scrolling pages are becoming more and more common. They are mostly used for simple pages with less content such as product introductions and recruitment. Many jQuery plug-ins have appeared for this effect. The effect achieved in this article is similar to the single-screen scrolling of fullpage. It is implemented using native JS and does not rely on any js library;
css code:
html,body {height:100%;}
body {margin:0px;}
p {height:100%;}html code:
##
<p style="background:#FEE;"></p> <p style="background:#EFE;"></p> <p style="background:#EEF;"></p> <p style="background:red;"></p>
js code:
document.addEventListener("DOMContentLoaded", function() {
var body = document.body,
html = document.documentElement;
var itv, height = document.body.offsetHeight;
var page = scrollTop() / height | 0;
//窗口大小改变事件
addEventListener("resize", onresize, false);
onresize();
//滚轮事件
document.body.addEventListener(
"onwheel" in document ? "wheel" : "mousewheel",
function(e) {
clearTimeout(itv);
itv = setTimeout(function() {
var delta = e.wheelDelta / 120 || -e.deltaY / 3;
page -= delta;
var max = (document.body.scrollHeight / height | 0) - 1;
if (page < 0) return page = 0;
if (page > max) return page = max;
move();
}, 100);
e.preventDefault();
}
);
//平滑滚动
function move() {
var value = height * page;
var diff = scrollTop() - value;
(function callee() {
diff = diff / 1.2 | 0;
scrollTop(value + diff);
if (diff) itv = setTimeout(callee, 16);
})();
};
//resize事件
function onresize() {
height = body.offsetHeight;
move();
};
//获取或设置scrollTop
function scrollTop(v) {
if (v == null) return Math.max(body.scrollTop, html.scrollTop);
else body.scrollTop = html.scrollTop = v;
};
});How to determine whether the iframe is loaded through JS
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# #
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