[thescrewdriver]

> It's the kind of feature that is useful when you write an application but not that useful when you're trying to debug it.

It's largely used in log messages and the like where it's used for debugging issues after the fact. I've yet to encounter a case where anyone was ever confused by the behaviour.

[DrJokepu]

Right, if this gets in then I officially demand that the much more innocent ternary operator and prefix/postfix increment/decrement operators get in as well.

[LanceH]

If I had to choose, I'd pick string interpolation.

i += 1 means an extra line, but that extra line is very clear.

Ternary vs an if-else arguably loses on clarity except for the simplest of cases.

"Today's date is #{date}. Your balance on account #{account.Number} is #{account.Balance}"

"Today's date is " + date + " Your balance on account " + account.Number + " is " + account.Balance

The second is a mess of +'s and "'s to me, not to mention the awkwardness of formatting spaces before and after each quote. The first, you write a sentence and plug in the variables where they belong.

Not saying you're wrong, just what I would choose.