SOURCE

let arr=[11,8,6,22,3,9,0,1,44]
let target=23
const fn=(result,target) => {
   for(let i=0;i<result.length;i++) {
       for(let j=i+1;j<result.length;j++) {
           if(result[i]+result[j]===target) {
               return  result[i]+"和"+result[j]
           }
       }
    }
  return null
}
console.log(fn(arr,target))


function twoSumHash(nums, target) {
  const map = new Map(); // 值 -> 索引
  for (let i = 0; i < nums.length; i++) {
    const need = target - nums[i];
    if (map.has(need)) {
      return  [need, nums[i]]
    }
    map.set(nums[i], i);
  }
  return null;
}