방법1 const solution = (arr) => { let newArr = [] for(let x of arr){ let newarr = x.toString().split('').reverse().reduce((a,b) => a+b,0) newArr.push(Number(newarr)) } console.log(newArr); } solution([32, 55, 62, 20, 250, 370, 200, 30, 100]) // 결과 [ 23, 55, 26, 2, 52, 73, 2, 3, 1 ] 방법2 const solution = (arr) => { let newArr = [] for(let x of arr){ let result = 0; while(x){ let t = x % 10; result =..