1  const isValidEmail = (email) => {
2    const emailRegex = new RegExp('[a-z0-9]+@[a-z0-9]+.[a-z]{2,4}$');
3  
4    return emailRegex.test(email.toLowerCase());
5  }1  const isValidEmail = (email) => {
2    const emailRegex = new RegExp('[a-z0-9]+@[a-z0-9]+.[a-z]{2,4}$');
3  
4    return emailRegex.test(email.toLowerCase());
5  }