[ced]

When formatted like this:

       result = (cond_A ? 1 :
                 cond_B ? 2 :
                 cond_C ? 3 : 
                 5)

they look quite a bit nicer than the if/else equivalent IMO.

[klingonopera]

Is everyone preferring to state these on multiple lines? With the advent of the widescreen monitor, I find we have all the more reason today to use all that extra space.

Using the example from the article, I'd refactor:

  const result = (!conditionA) ? ("Not A") : (conditionB ? "A & B" : "A");

or, since code should be simple to read:

  const result = (conditionA) ? (conditionB ? "A & B" : "A") : ("Not A");

All the parentheses' are redundant for the compiler or computer, but remind myself as a human that "const result" is not a direct statement, but a result of a conditional expression.

EDIT: 2nd set of parentheses' in 2nd expression might not be redundant.

[mikekchar]

This is actually nice because in some languages a case statement is a statement and not an expression -- so you can't assign the value easily. +1, would use this in production code :-)

[AstralStorm]

And when conditions are not direct don't forget to add Lisp level of parentheses. I bet one time you will forget and everything will explode.