Build a Space Mission Roster - Step 12

JavaScript
1

Tell us what’s happening:

Can someone please tell me what is wrong? I’ve tested with console log and it did what I thought it should do. then I gave up and went to chatGPT, and copilot, and they gave me several answers (that it was everything the same as mine or I thought it was) and none passed. I’m already giving up of that step…

Your code so far

const squad = [];

const firstAstronaut = {
  id: 1,
  name: "Andy",
  role: "Commander",
  isEVAEligible: true,
  priority: 3
};

function addCrewMember(crew, astronaut) {
  for (let i = 0; i < crew.length; i++) {
    if (crew[i].id === astronaut.id) {
      console.log("Duplicate ID: " + astronaut.id);
      return;
    }
  }
  crew.push(astronaut);
}

addCrewMember(squad, firstAstronaut);

const remainingCrew = [
  { id: 2, name: "Bart", role: "Pilot", isEVAEligible: false, priority: 8 },
  { id: 3, name: "Caroline", role: "Engineer", isEVAEligible: true, priority: 4 },
  { id: 4, name: "Diego", role: "Scientist", isEVAEligible: false, priority: 1 },
  { id: 5, name: "Elise", role: "Medic", isEVAEligible: true, priority: 7 },
  { id: 6, name: "Felix", role: "Navigator", isEVAEligible: true, priority: 6 },
  { id: 7, name: "Gertrude", role: "Communications", isEVAEligible: false, priority: 4 },
  { id: 8, name: "Hank", role: "Mechanic", isEVAEligible: true, priority: 2 },
  { id: 9, name: "Irene", role: "Specialist", isEVAEligible: true, priority: 5 },
  { id: 10, name: "Joan", role: "Technician", isEVAEligible: false, priority: 1 },
];

for (let i = 0; i < remainingCrew.length; i++) {
  addCrewMember(squad, remainingCrew[i]);
}

function swapCrewMembers(crew, fromIndex, toIndex) {
  if (
    fromIndex < 0 ||
    toIndex < 0 ||
    fromIndex >= crew.length ||
    toIndex >= crew.length
  ) {
    return crew;
  }else{

  const updatedCrew = crew.slice();

 updatedCrew[fromIndex] = updatedCrew.splice(toIndex, 1, updatedCrew[fromIndex])[0];

  return updatedCrew;
}};

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Challenge Information:

Build a Space Mission Roster - Step 12

2

why did you add this?

3

Hi @MikaBraga

Here is a comparison of the original code and your code.

The code in blue is the original code, the code in red is your code.
The code in magenta is the overlap.

image
image926×428 24.1 KB

It looks like you make changes to the swapCrewMembers function, like removing the console log and returning crew in the ifstatement.

You also added an else statement.

Please reset the step to restore the seed code and try again.

Do not make changes or add code which you are not asked to add.

As @hbar1st mentioned, you are not asked to return anything after the if statement.

Happy coding

4

I think it was after paste of results code that I was getting, but I had before just return and it didn’t pass

5

so did you try doing this without the return? (they didn’t ask for a return)