문제

나의 풀이

function solution(s) {
    const wordsArr = s.split(' ');
    var txt=''
    const newArr=[]
    for (let i = 0; i < wordsArr.length; i++) {
       for(let j=0;j<wordsArr[i].length;j++){
           if(j%2==0){
         txt +=  wordsArr[i][j].toUpperCase()
           } else{
           txt +=wordsArr[i][j].toLowerCase()
           }
     
          
       }
          newArr.push(txt)
        txt=''
    }
     return newArr.join(' ');
}