Question

I imagine this is really simple but I just seem unable to achieve it. I have this snippet…

var choice = location.href.split("?")[1].split("=")[1];

It works fine until ‘choice’ is empty, then it throws the following error….

TypeError: location.href.split(...)[1] is undefined

I understand this is because you cant call split on a variable that is undefined, my solution i think is to store the variable and then split it if full or ignore it if undefined.

Can someone help me do this?

Answer 1

Not super cool to do it like this, but if you expect only one parameter in query string you can do it like this:

var choice = (location.href.split("?")[1] || '').split("=")[1];

You will get choice as undedfined if it’s not set in query string.