Email RegEx validation

README.md

Email RegEx Validations

Based on urlregex.com

Demo

Validate email syntax in JavaScript

Results

Email	Is valid
Fred Bloggs@example.com	true
Joe.\Blow@example.com	true
"Abc@def"@example.com	true
"Fred Bloggs"@example.com	false
customer/department=shipping@example.com	true
$A12345@example.com	true
!def!xyz%abc@example.com	true
_somename@example.com	true
Abc@def@example.com	true

index.js

/**
 * Usign ES6/Babel
 * Demo: http://jsbin.com/tonatohuyi/
 */

function isEmail(value) {
  var pattern = /((([A-Za-z]{3,9}:(?:\/\/)?)(?:[\-;:&=\+\$,\w]+@)?[A-Za-z0-9\.\-]+|(?:www\.|[\-;:&=\+\$,\w]+@)[A-Za-z0-9\.\-]+)((?:\/[\+~%\/\.\w\-_]*)?\??(?:[\-\+=&;%@\.\w_]*)#?(?:[\.\!\/\\\w]*))?)/;
  return pattern.test(value);
}

const emails = [
  'Fred\ Bloggs@example.com',
  'Joe.\\Blow@example.com',
  '"Abc@def"@example.com',
  '"Fred Bloggs"@example.com',
  'customer/department=shipping@example.com',
  '$A12345@example.com',
  '!def!xyz%abc@example.com',
  '_somename@example.com',
  'Abc\@def@example.com'
];

emails.forEach(email => console.log(email, isEmail(email)) );