TwoSum.js

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

// You may assume that each input would have exactly one solution, and you may not use the same element twice.

// You can return the answer in any order.

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

// Example 2:
// Input: nums = [3,2,4], target = 6
// Output: [1,2]

// Example 3:
// Input: nums = [3,3], target = 6
// Output: [0,1]

var twoSum = function (nums, target) {
  for (let i = 0; i < nums.length; i++) {
    for (let j = 1; j < nums.length; j++) {
      if (nums[i] + nums[j] == target && i != j) {
        return [i, j];
      }
    }
  }
};