JavaScript 입문 Level2 - 탭기능 만들기

for (let i =0; i<3; i++) {

document.getElementsByClassName('tab-button')[i].addEventListener('click', function() {

document.querySelector('.tab-button').classList.remove('orange');
 

 
document.getElementsByClassName('tab-button')[i].classList.add('orange');
 
 
document.querySelector('.tab-content').classList.remove('show');
 
document.getElementsByClassName('tab-content')[i].classList.add('show');

})

}