Question

I want to get querystring value by javascript. I am using this function.

var qs = (function (a) {
if (a == "") return {};
var b = {};
for (var i = 0; i < a.length; ++i) {
    var p = a[i].split('=');
    if (p.length != 2) continue;
    b[p[0]] = decodeURIComponent(p[1].replace(/\+/g, " "));

}
return b;
})(window.location.search.substr(1).split('&'));

It works well. But if there is no querystring value in the url, if is an error.
I want to modify it as if it find querysting value return it.

If there is no query string value then return word “Natural”

Can you help me please?

Answer 1

At the top you could write:

if (a == "") return "Natural";

But that is really weird you would want to do this.