twoSum.js

let twoSum = (myArray, sum, cb) => {
 let twoSumArr = [];
 console.log(myArray);

 for (let i=0; i<myArray.length; i++) {
 for (let j=i+1; j<myArray.length; j++) {
 if (i == j) continue;
 if (myArray[i] + myArray[j] == sum) {
 let newArray = [myArray[i], myArray[j]];
 twoSumArr.push(newArray);
 }
 }
 }

 cb(null, twoSumArr);
};

twoSum([1, 6, 4, 5, 3, 3], 7, (err, twoSumArray) => {
 if (err) {

 } else {
 console.log(twoSumArray);
 }
});