How to read parameters from URL

Suppose your URL is -- > http://localhost:3000/decorations/expense?decoration=32

Step 1: Add a function inside your js file


function getUrlVars() {
    var vars = {};
    var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m,key,value) {
        vars[key] = value;
    });
    return vars;
}


Step 2: Retrieve the data in a variable by using below line


var deco = getUrlVars()["decoration"];