Build a Voting System - Build a Voting System

JavaScript
1

Tell us what’s happening:

Have been trying for a while and don’t know why the display is not working, please help me to figure out what am I missing to match the format.

Failed:17. displayResults() should return the results in the correct format.

Your code so far

const poll = new Map();

function addOption(option){
  if(option == '') return "Option cannot be empty.";
  if(!poll.has(option)){
    poll.set(option, new Set());
    return `Option "${option}" added to the poll.`
  } return `Option "${option}" already exists.`;
}

function vote(option, voterId){
  if(!poll.has(option)){
    return `Option "${option}" does not exist.`;
  } 
  if(poll.get(option).has(voterId)){
    return `Voter ${voterId} has already voted for "${option}".`;
  }
  poll.get(option).add(voterId);
  return `Voter ${voterId} voted for "${option}".`;
}

addOption("OptionA");
addOption("OptionB");
addOption("OptionC");
vote("OptionA", 1);
vote("OptionB", 2);
vote("OptionC", 3);

function displayResults(){
  let s = "Poll Results:\n";
  poll.forEach((value,key) => s += `${key}: ${value.size} votes\n`);
  return s;
}

console.log(displayResults());

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36 Edg/134.0.0.0

Challenge Information:

Build a Voting System - Build a Voting System

2

Hi @gustavohome09

When I debug your code, it looks like you are adding an extra line after the last result.

image
image1158×153 21.3 KB

The tests are not expecting the extra line.
Compare the expected output with your output.

I added the x to show the extra line at the end.

Happy coding

1 Like
3

That’s it, thank you!

1 Like