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JS Anchor Point

Source: Internet
Author: User
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Anchor Point, Http://localhost:8000/Demo1/js the anchor point in the address bar. Html#a jump to the specified location can be the name of the <a> tag or the ID of the tag.

I've seen a page with an anchor, but it's hard to see the tag in the code for the name or ID for that anchor point. On the Internet a check, the original can use Window.location.hash this is to get or set the anchor point. Is this not a solid foundation of performance? There's this thing on the W3school.

Look at the code

<!DOCTYPE HTML><HTMLxmlns= "http://www.w3.org/1999/xhtml"><Head>    <Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8" />    <title>JS Anchor Point</title>    <Scriptsrc= "Js/jquery-1.9.1.min.js"></Script>    <Scripttype= "Text/javascript">        $(function () {            $("#demo a"). On ("Click", function () {                var Self= $( This); varHash=self.attr ("href"). Split ('#')[1]; Window.location.hash= "m -" +Hash;        });    }); </Script></Head><Body>    <DivID= "Demo">        <ahref= "#a">Jump A</a>        <ahref= "#b">Jump B</a>    </Div>    <Divstyle= "Height:500px;background-color: #00ced1"></Div>    <DivID= "M-a"style= "Height:200px;background-color: #b6ff00">    </Div>    <DivID= "M-b"style= "Height:200px;background-color: #808080">    </Div></Body></HTML>

There is a small problem, the address bar has an anchor point when the F5 refresh page does not jump to the specified location, you can do so.

$ (function  () {            var hash = Window.location.hash;             var id = hash.split (' # ') [1];             if (ID) {                var t = $ (' #m-' + ID). Offset (). Top;                $ (window). scrolltop (t);            }        });


This will make the refresh jump past. This method can also be modified, add an animation, point the anchor point after the page slowly go to the anchor point.

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