Question

For a = a || b, a = a && b, there is good syntax sugar a ||= b, a &&= b. Something that also appears frequently is:

a = b || a
a = b && a

Is there a good syntax sugar or a short way to write this?

Answer 1

a = b || a

can be rewritten as:

a = b if b

which can be rewritten without repetition of a or b as

x = b and a = x

If the expressions a and b are both longer than 6 characters, x = b and a = x is the shortest form.