JavaScript: get query string values from url in JavaScript

JavaScript: get query string values from url in JavaScript:

URL: http://websolutiontool.blogspot.in/2016/02/javascript-get-query-string-values-from.html

Url with String Values: http://websolutiontool.blogspot.in/2016/02/javascript-get-query-string-values-from.html?a=Apple&b=Banana&c=cherry0123&d=+doll%20&empty

check output click result then click below button: Result

Click the button to get query string values from url.

urlParams =
{
 a: " Apple ",
 b: "Banana",
 c: "cherry0123",
 d: "doll",
 empty: ""
}

JavaScript: get query string values from url in JavaScript:

Javascript part is here:
<script> var urlParams; (window.onpopstate = function () { var match, pl = /\+/g, // Regex for replacing addition symbol with a space search = /([^&=]+)=?([^&]*)/g, decode = function (s) { return decodeURIComponent(s.replace(pl, " ")); }, query = window.location.search.substring(1); urlParams = {}; while (match = search.exec(query)) urlParams[decode(match[1])] = decode(match[2]); })(); </script>

To assign or to get output use below code:
<script> //to assign to variable var a =urlParams["a"]; var b =urlParams["b"]; var c =urlParams["c"]; var d =urlParams["d"]; var empty =urlParams["empty"]; // to get output directly alert(urlParams["a"]); // result is -> "Apple </script>