curriculum/challenges/english/blocks/workshop-space-mission-roster/694ce8609fb805ba21cebc02.md
Mission control needs a method to swap the positions of two crew members in a roster. Create an empty function named swapCrewMembers with three parameters:
crew: an array of astronaut objects
fromIndex: the index of the first astronaut to swap
toIndex: the index of the second astronaut to swap
You should create a function named swapCrewMembers.
assert.isFunction(swapCrewMembers);
Your swapCrewMembers function should have parameters crew, fromIndex, and toIndex.
const regex = __helpers.functionRegex('swapCrewMembers', ['crew', 'fromIndex', 'toIndex']);
assert.match(__helpers.removeJSComments(swapCrewMembers.toString()), regex);
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]);
}
--fcc-editable-region--
--fcc-editable-region--