Build an Nth Fibonacci Number Calculator - Build an Nth Fibonacci Number Calculator

[Dragonmage2025]

Tell us what’s happening:

On step 3 to building a nth Fibonacci number calculator it says Fibonacci (2) should return 1 and I can’t figure out what’s wrong nor can ai or edge help pls

Your code so far

def fibonacci(n):
    sequence = [0,1]

    if n < 2:
           return sequence[n]


           for i in range(2, n + 1):
            sequence.append(sequence[i-1] + sequence[i -2])

            return sequence[n]

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Challenge Information:

Build an Nth Fibonacci Number Calculator - Build an Nth Fibonacci Number Calculator

freeCodeCamp.org

GitHub Link: freeCodeCamp/curriculum/challenges/english/blocks/lab-nth-fibonacci-number/68de7360e1832ea180577a8a.md at main · freeCodeCamp/freeCodeCamp · GitHub

[Teller]

Welcome to the forum @Dragonmage2025

To help you debug add the following print call after the function definition.

print(fibonacci(2))

Happy coding

[ILM]

@Dragonmage2025

def fibonacci(n):
    sequence = [0,1]

    if n < 2:
           return sequence[n]

how do you expect this to return 1?

the if condition is false and anyway sequence[2] does not have a value

@Dragonmage2025

           for i in range(2, n + 1):
            sequence.append(sequence[i-1] + sequence[i -2])

            return sequence[n]

also please double check the positioning of this, note how it is after return sequence[n] and with its same indentation meaning this is never going to be executed