All Tests Pass: Week 1

atp-week1.js

/**
 * All Tests Pass: Week 1
 * Given an array of integers, find out if any two items in the array add up to
 * the target. For example, sumsToTarget([1,2], 3) should return true, but
 * sumsToTarget([1,2], 4) should return false.
 */

function sumsToTarget(integers = [], target) {
  const uniqueIntegers = new Set(integers);

  for (const integer of uniqueIntegers) {
    const difference = target - integer;
    
    if (uniqueIntegers.has(difference)) return true;
  }
      
  return false;
}


// Tests: Don't edit anything after this line.

assertEqual(sumsToTarget([1, 5, 3], 3), false, "Array [1, 5, 3] does not have items that add up to 3");
assertEqual(sumsToTarget([0, 2, 3, 5, 8], 3), true, "Array [0, 2, 3, 5, 8] has items that add up to 3");
assertEqual(sumsToTarget([5, 5], 5), false, "[5, 5] does not have items that add up to 5");

console.log("All clear 🎉");

function assertEqual(first, second, output) {
  try {
    if (first !== second) {
      throw `${output} ${first} ${second}`
    }
  } catch (e) {
    throw `${e} - ${output} ${first} ${second}`
  }
}