Copy Code code as follows:
$ (document). Height ()//is to get the height of the entire page
$ (window). Height ()//is the height of the portion of the page that is currently visible to the browser. This size changes when you zoom in on the browser window, not the same as the document.
To get to the top, just get to scrolltop () when the ==0 is the top;
To get the bottom, just get scrolltop () >=$ (document). Height ()-$ (window). Height () can be known to have scrolled to the end;
Copy Code code as follows:
$ (document). ScrollTop () Gets the distance from the vertical scrolling, that is, the distance from the top of the window to the top of the page at the current scrolling place;
$ (document). ScrollLeft () This is the distance to get the horizontal scroll bar;
Example:
Copy Code code as follows:
$ (document). Scroll (function () {
$ ("#lb"). Text ($ (document). ScrollTop ());
})
<span id= "lb" style= "top:100px;left:100px;position:fixed;" ></span><!--a fixed span marker scrolling-->
