# FAQ: Functions - Placholder

#1

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

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This exercise can be found in the following Codecademy content:

## FAQs on the exercise Placholder

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#2

Hello, I’m so confused! This is what I have done, but I keep getting an error (“expected variable ‘result’ to be defined”)

// Define the ‘makeSandwich()’ function
function makeSandwich(topping1, topping2) {
sandwich =+ sandwich + ‘topping1’
sandwich =+ sandwich + ‘topping2’

result = makeSandwich(‘burger patty’, ‘pickles’)
}

Help please! I really wanna master this so I can move on confidently. Thanks!

1 Like
#4

All compound assignments are written with the operation first, then assignment.

``````a += 1
``````

which is the equivalent of,

``````a = a + 1
``````

The addition takes place first, then the assignment.

Note that when using the augmentation operator we do not repeat the variable on the right hand side.

``````sandwich = bread
sandwich += topping1
``````

Note also that `topping1` and `topping2` are variables so we would never write them in quotes.

#5

What is the meaning of + ‘,’

6 Likes