Question

Let’s say you have an object, TRACK, for tracking

TRACK = {};
TRACK.pageName = pageName || TRACK.buildPageName();

This would work fine if there was this somewhere before it:

var pageName = "Home";

Let’s assume a way to fix this is:

TRACK.pageName = (typeof pageName != 'undefined' ? pageName : TRACK.buildPageName());

Is there a better practice for doing this with large javascript objects?

Answer 1

if you are in a browser, you can do window.pageName to check the pageName value.

TRACK.pageName = window.pageName !== undefined ? pageName : TRACK.buildPageName();

But it’s not really a “better” pratice. It’s just a second way to do this. Using typeof is fine too.