Problem in returning indices of two numbers in array

Issue

I have this problem:

Given an array of integers nums and an integer target, return the indices of two numbers that add up to target.

Example 1:

Input: nums = [2,7,11,15], target = 9
Output: [0,1]
Output: Because nums[0] + nums[1] == 9, we return [0, 1].

With the code below was able to get the values added in array using set and Map

What I need help is to return the indices

const arr = [{key1: 2}, {key1: 7}, {key1: 11}, {key1: 15}];
const k = 9;
const valueSet = new Set(arr.flatMap((x) => Object.values(x)));
const valueArray = [...valueSet];

valueArray.forEach((v1, i1) => {
    for (let i2 = i1 + 1; i2 < valueArray.length; i2++) {
        if ((v1 + valueArray[i2]) === k) {
            // Return the indices
            return valueArray[i2];
        }
    }
});

Solution

You have to parse and find the combination of indexes which gives you the sum.

Below code will help you

const arr = [{ key1: 2 }, { key1: 7 }, { key1: 11 }, { key1: 15 }];
const k = 9;
let valueSet = new Set(arr.flatMap((x) => Object.values(x)));
let valueArray = [...valueSet];

let indices;
let isFound = false;
// valueArray.forEach((v1, i1) => {
for (let i1 = 0; i1 < valueArray.length && !isFound; i1++) {
  for (let i2 = i1 + 1; i2 < valueArray.length && !isFound; i2++) {
    if ((valueArray[i1] + valueArray[i2]) === k) {
      //Return the Indices
      indices = [i1, i2];
      isFound = true;;
    }
  }
}
console.log(indices);

Answered By - Nitheesh