A simple js method for obtaining the parameters of the current page url

// JS get query parameter name: query parameter name
Function geturlparam (name ){
VaR Reg = new Regexp ("(^ | &)" + name + "= ([^ &] *) (& | $ )");
VaR r = Window. Location. Search. substr (1). Match (REG );
If (R! = NULL)
Return Unescape (R [2]);
Return NULL;
}

Assume that the current page isHttp://www.cnblogs.com/zhengrunqiang/admin/EditPosts.aspx? Opt = 1

If you need to obtain the value of the OPT parameter in the front-end JS Code on the current page

First introduce the following section

<SCRIPT type = "JavaScript">

// JS get query parameter name: query parameter name
Function geturlparam (name ){
VaR Reg = new Regexp ("(^ | &)" + name + "= ([^ &] *) (& | $ )");
VaR r = Window. Location. Search. substr (1). Match (REG );
If (R! = NULL)
Return Unescape (R [2]);
Return NULL;
}

$ (Document). Ready (function (){

VaR opt = geturlparam ("Opt ");

Alert (OPT );

});

</SCRIPT>

Result: 1