The logical OR operator returns true if either of the operands are true.
Here is a prototype:
varA || varB
Here is a example:
var x = true var y = false var z = x || y //z equals true
For those who are familiar with the C language, or similar languages, these operators should look pretty familiar. For those of you who aren't that familiar with the C operators, rest assured that, once you begin to use them frequently, they will become second nature.