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Programming in simple 4 steps
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This is literally a getter function. How is a getter awful code? It's the simplest function there is. The only function simpler than that is returning the input itself.
How does "foo" mean "get"? Half the battle of writing correct code is writing code that's easy to interpret. Do you always look at the guts of every function you're about to use?
It's a one line function in an example. It's a getter.