Most people familiar with Ruby are familiar with the Ruby operator ||=. What it does is assign the value of the right to the variable on the left if left is nil (or false). Here is an example:
Most people however are not familiar with the corollary operator &&=. What it does is assign the value of the right to the variable on the left if left is not nil (or false). Here is an example:
Here is an example of how one might use &&=. The idea is that you have an array of something and you only really care if they all completed or not. I used AR::Base.save to show a poor man's transactions.
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