i don't know why i'm receiving this error message can anyone help please ?
const wrapper = document.querySelector('.wrapper');
loginlink = document.querySelector('.login-link');
registerlink = document.querySelector('.register-link');
registerlink.addEventListener('click',()=> {wrapper.classList.add('active');});
loginlink.addEventListener('click',()=> {wrapper.classList.remove('active');});
i just folowed a vid and i don't know why it didn't work