Javascript - Compare without typecasting to boolean

Question

In other languages I have two sets of operators, or and ||, which typecast differently. Does Javascript have a set of operators to compare and return the original object, rather than a boolean value?

I want to be able to return whichever value is defined, with a single statement like var foo = bar.name or bar.title

Answer 1

There is only one set of boolean operators (||, &&) and they already do that.

var bar = {
    name: "",
    title: "foo"
};

var foo = bar.name || bar.title;

alert(foo); // alerts 'title'

Of course you have to keep in mind which values evaluate to false.

Answer 2

var foo = (bar.name != undefined) ? bar.name : 
          ((bar.title != undefined) ? bar.title : 'error');