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How to verify string is a valid email in Javascript?


Email validation is a critical part of validating an HTML form. An email is a string or a subset of ASCII characters separated into two parts by @ symbol. The first part contains personal information while the other contains the domain name at which the email is registered.

function ValidateEmail(input) {

  var validRegex = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/;

  if (input.value.match(validRegex)) {

    alert("Valid email address!");

    document.form1.text1.focus();

    return true;

  } else {

    alert("Invalid email address!");

    document.form1.text1.focus();

    return false;

  }

}

Example 2


function validateEmail(email) 
    {
        var re = /\S+@\S+\.\S+/;
        return re.test(email);
    }
    
console.log(validateEmail('anystring@anystring.anystring'));


Conclusion

In this page (written and validated by ) you learned about . What's Next? If you are interested in completing Javascript tutorial, we encourage you simply to start here: Javascript Tutorial.



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