Question about const variable inside function

#1

Here is the code:

const getAverage = (numberOne, numberTwo) => {
const average = (numberOne + numberTwo) / 2;
return average;
}

My question is why we declare average as const? In this case what is the difference with let.

the code shoud be :

const getAverage = (numberOne, numberTwo) => {
let average = (numberOne + numberTwo) / 2;
return average;
}strong text

#2
#3

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