Conditional ternary operator

Question

This operator can only be used with numbers?

Answer 1

You can use it for any assignement, even in an implicit assignement during a function call and or inside an expression:

var x = 42;
alert( x + ( (x>9) ? "this is a number" : "this is a digit" ) );

Answer 2

Its not limited only for numbers. You can use this for other data types too.