We are executive members who pays $100/year. We also get cash back for every purchase and we pretty much get the membership fee back every year. We are a family of four and we buy most of our home supplies from Costco plus other stuffs. We love Costco but you have to know what you are buying.
Undefined is a term used when a mathematical result has no meaning. More precisely, undefined values occur when an expression is evaluated for input values outside of its domain. ( 1 if no complex numbers) ( 2 if no complex numbers) ( units in radians, no complex infinity)
(function(undefined) { /* your complete code here */ })(); As you see, the self-invoking function has one parameter named undefined. At line 3, the self-invoking functions is called without any parameter. It results that the parameter has the value undefined (or it is defined to undefined if you prefer).