Build a Voting System - Build a Voting System

JavaScript
1

Tell us what’s happening:

Hi, I’d just like to complain about the test conditions; specifically test 17.

The condition is that the output of displayResults(){} be formatted correctly, but it doesn’t specify where it allows a new line character, if you should instead use literal new lines, etc. This results in needing to Rube-Goldberg-Machine the returned string’s format until by some miracle (without specifying why) you pass it. Put a ‘\n’ after Poll Results: with no space? Fail. With a space? Fail. Okay, try.. (etc).

Your code so far

const createMap = () => new Map();
const poll = createMap();

const addOption = (option, map = (poll ?? createMap())) => {
  if (Object.hasOwn(Object.fromEntries(map), option))
    return `Option "${option}" already exists.`
  if (!option)
    return `Option cannot be empty.`
  map.set(option, new Set())
    return `Option "${option}" added to the poll.`
}

const vote = (option, voterId, map = (poll ?? createMap())) => {
  if (!Object.hasOwn(Object.fromEntries(map), option)) {
    return `Option "${option}" does not exist.`
  }
  if (!map.get(option).has(voterId)){
    map.get(option).add(voterId)
    return `Voter ${voterId} voted for "${option}".`
  }
  return `Voter ${voterId} has already voted for "${option}".`
}

const displayResults = () => {
let results = `Poll Results:`
const arr = Array.from(poll).forEach(([key, val]) => {
  results += `
${key}: ${val.size} votes`
})
return results;
}

addOption("Turkey")
addOption("Algeria")
addOption("Maine")
addOption("Egypt")
vote("Egypt", "voter1")
vote("Egypt", "voter2")
vote("Egypt", "voter3")
const egypt = poll.get("Egypt")
console.log(displayResults())

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Challenge Information:

Build a Voting System - Build a Voting System

2

Thank you for helping make FCC better. Bugs can be reported as GitHub Issues. Whenever reporting a bug, please check first that there isn’t already an issue for it and provide as much detail as possible.

We have blurred this solution (with [spoiler][/spoiler] tags) so that users who have not completed this challenge can read the discussion in this thread without giving away the solution.

3

Thank you. I might be being pedantic about this but I did open up a GitHub issue about it anyway.