email validation using regex in javascript

1function validateEmail (emailAdress)
2{
3  let regexEmail = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
4  if (emailAdress.match(regexEmail)) {
5    return true; 
6  } else {
7    return false; 
8  }
9}
10
11let emailAdress = "test@gmail.com";
12console.log(validateEmail(emailAdress));
13

1function validateEmail(email) {
2    var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
3    return re.test(String(email).toLowerCase());
4}
5

1function isValidEmail(email) {
2  const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
3  return re.test(String(email).toLowerCase());
4}

1/* Answer to: "email regex javascript" */
2
3ValidateEmail("icecream123@yahoo.com"); // Must be a string
4
5function ValidateEmail(email) {
6	var emailformat = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(String(email).toLowerCase());
7	if (email.match(emailformat)) {
8    	alert("Nice Email!")
9      	return true;
10    };
11    alert("That's not an email?!")
12    return (false);
13};

1function validateEmail(email) 
2    {
3        var re = /\S+@\S+\.\S+/;
4        return re.test(email);
5    }
6    
7console.log(validateEmail('anystring@anystring.anystring'));

1Author:Mohammad Arman Khan
2//E-mail valiadtion using Regex
3var pattern = new RegExp(/^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i);
4 if (!pattern.test(input["email"])) {
5 isValid = false;
6 errors["email"] = "Please enter valid email address.";
7 return isValid;
8}else{
9   isValid = true;
10   return isValid;
11}