Get URL parameter values using jquery

Browser URL :

http://localhost:37757/CompanyAssesment/CreateContact?isChildWindow=true

The following code will show how to get URL parameter from the browser url

 var isChildWin = getParameterByName('isChildWindow');

 function getParameterByName(name) {
        var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search);
        return match && decodeURIComponent(match[1].replace(/\+/g, ' '));
    }