Simple example based on scroll bar position judgment_javascript skills-JS Tutorial-php.cn

Simple example based on scroll bar position judgment_javascript skills

韦小宝

Release： 2017-12-16 09:19:33

Original

1516 people have browsed it

The editor below will share with you a simple example based on scroll bar position judgment. The power of JavaScript is obvious to all, so you can learn JavaScript## well. How important # is, friends who are interested in JavaScript, please follow the editor to have a look

The example is as follows:

//获取滚动条距离顶部位置
function getScrollTop() {
 var scrollTop = 0;
 if (document.documentElement && document.documentElement.scrollTop) {
  scrollTop = document.documentElement.scrollTop;
 } else if (document.body) {
  scrollTop = document.body.scrollTop;
 }
 return scrollTop;
}
//获取当前可视范围的高度
function getClientHeight() {
 var clientHeight = 0;
 if (document.body.clientHeight && document.documentElement.clientHeight) {
  clientHeight = Math.min(document.body.clientHeight, document.documentElement.clientHeight);
 } else {
  clientHeight = Math.max(document.body.clientHeight, document.documentElement.clientHeight);
 }
 return clientHeight;
}
//获取文档完整的高度
function getScrollHeight() {
 return Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
}
//判断滚动条是否达到底部
getScrollTop() + getClientHeight() == getScrollHeight()

Copy after login

The above simple example based on scroll bar position judgment is all the content shared by the editor. I hope it can To give you a reference, I also hope that everyone will support the PHP Chinese website.

Related recommendations:

js scroll bar multiple styles, recommended_javascript skills

js scroll bar back to top code_javascript skills

js scroll bar smooth movement sample code_javascript skills

The above is the detailed content of Simple example based on scroll bar position judgment_javascript skills. For more information, please follow other related articles on the PHP Chinese website!