# FAQ: Functions - Review

This community-built FAQ covers the “Review” exercise from the lesson “Functions”.

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In sandwich function, there is only one arguments of ‘add bread’ in first. But in result, there is sandwich enclosed with two breads? how is that possible? Doesn’t it need to have another ‘make bread’ at the bottom in order to make complete sandwich?

2 Likes

Hello, beginner here, I need help breaking down this verb-age:

" To review:

• When we define a function, we specify the instructions, inputs, and name of the function."

What does it mean by specify an ‘input’ ?
I get the calling/defining a function and the instructions that are present within a function but what about the input? Is it what we wrote for the overall function?