What's the problem with this code snippet?

console.log() is unreachablecalculatePeriphery() can't be assigned to a variablecalculatePeriphery() can't take decimalsMath.PI can't be accessed within functions

That's it! Because the return keyword stops the execution of a function, console.log() is unreachable.

Almost! Because the return keyword stops the execution of a function, console.log() is unreachable.