Question

This very basic script creates 3 variables to use on pages, today date in a preferred format, a date +90 days from today and a date +120 days from today.

It works great on Firefox and IE, however in Chrome those variables come up as “undefined” and console outputs this:
“Uncaught TypeError: Object false has no method ‘setDate'”

Here is my JavaScript

var today = new Date();
var rg = (today.getMonth()+1) + "/" + today.getDate() + "/" + today.getFullYear();

var closed = new Date();
closed.setDate(today.getDate()+90);
var cl = (closed.getMonth()+1) + "/" + closed.getDate() + "/" + closed.getFullYear();

var expire = new Date();
expire.setDate(today.getDate()+120);
var ex = (expire.getMonth()+1) + "/" + expire.getDate() + "/" + expire.getFullYear();

Answer 1

closed is a reserved name for any window objects. (see here) Since you’re running this in the global space all variables are stored underneath window, so you’re running into collision with what the browser thinks window.closed should be.

Simply change var closed = new Date(); to a new name or as @KingKongFrog suggests place it in a new scope via a closure.