/C/Check email id valid or not without using regex in javascript

Check email id valid or not without using regex in javascript

Javascript regex email

function validateEmail (emailAdress)
{
  let regexEmail = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
  if (emailAdress.match(regexEmail)) {
    return true; 
  } else {
    return false; 
  }
}

let emailAdress = "test@gmail.com";
console.log(validateEmail(emailAdress));

Js email regex

function validateEmail(email) {
    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,}))$/;
    return re.test(String(email).toLowerCase());
}

Source: stackoverflow.com

Check email id valid or not without using regex in javascript

function ValidateEmailAddress(emailString) {
    // check for @ sign
    var atSymbol = emailString.indexOf("@");
    if(atSymbol < 1) return false;
    
    var dot = emailString.indexOf(".");
    if(dot <= atSymbol + 2) return false;
    
    // check that the dot is not at the end
    if (dot === emailString.length - 1) return false;
    
    return true;
}

Source: qawithexperts.com

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