// export function twoSumHashTable(nums: number[], target: number): number[] {
//   const result: number[] = [];
//   const hashTable: Record<string, number> = {};
//   let i = 0;


//   while (i < nums.length) {
//     let key = nums[i];
//     let val = i;
//     let searchKey = String(target - key);

//     if (searchKey in hashTable) {
//       result.push(hashTable[searchKey]);
//       result.push(val);
//       break;
//     } else {
//       hashTable[key] = val;
//     }

//     i++
//   }

//   return result;
// };

export function twoSumHashTable(nums: number[], target: number): number[] {
  let usedNums = {};

  for (let idx = 0; idx < nums.length; idx++) {
    let secondNum = nums[idx];
    let firstNum = target - secondNum;
    if (firstNum in usedNums) {
      return [usedNums[firstNum], idx];
    }
    usedNums[secondNum] = idx;
  }
  return [];
};