Js Jq centralized method sample code for obtaining URL parameters_javascript skills

JQ value method:

jquery itself does not have a method to obtain URL parameters, but there is already a plug-in, and you can directly obtain URL and other parameters
Plug-in connection homepage: https://github.com/allmarkedup/ jQuery-URL-Parser
Download link: http://download.github.com/allmarkedup-jQuery-URL-Parser-bb2bf37.zip

Examples of use
Using the current page's url ( for these examples https://mysite.com/information/about/index.html?itemID=2&user=dave):

// get the protocol
jQuery.url.attr("protocol") // returns 'http'

// get the path
jQuery.url.attr("path") // returns '/information/about/index.html'


// get the host
jQuery.url.attr("host") // returns 'mysite.com'

// get the value for the itemID query parameter
jQuery.url .param("itemID") // returns 2

// get the second segment from the url path
jQuery.url.segment(2) // returns 'about'
Using a different url to the current page:

// set a different URL and return the anchor string
jQuery.url.setUrl("http://allmarkedup.com/category/javascript/#footer"). attr("anchor") // returns 'footer'

JS native acquisition:

The most original JS method:

Copy Code The code is as follows:

var URLParams = new Array();
var aParams = document.location.search.substr(1).split(' &');
for (i=0; i < aParams.length ; i ){
var aParam = aParams[i].split('=');
URLParams[aParam[0] ] = aParam[1];
}

Call like this:

http://127.0.0.1/index.php?name=name1&cid=123
/ /Get the passed name parameter
name=URLParams["name"];

document.write(name);
//Get the passed cid

cid= URLParams["cid"];

Regular analysis method:

Method 1:

Copy code The code is as follows:

function getQueryString(name) {
var reg = new RegExp("(^|&)" name "=([^&]*)(&|$ )", "i");
var r = window.location.search.substr(1).match(reg);
if (r != null) return unescape(r[2]); return null;
}

is called like this:

Copy code The code is as follows:

alert(GetQueryString("Parameter name 1"));

alert(GetQueryString("Parameter name 2"));

alert(GetQueryString(" Parameter name 3"));

Method 2:

Copy code The code is as follows:

Call like this:

Copy the code The code is as follows: