A common sight in Ruby code is
What’s that you say?
||= is used for conditional assignment:
One caveat is that the implementation of
||= is conditional on whether a is either
If it helps to think of it this way, the closest easy approximation would be
a || a = 24.
Another far less used, but pretty cool one is
&&=, as you can imagine, its the reverse. It will assign only if there is a non-
false value present: