email validation

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Sophia
10 Jul 2017
1const emailRegex = RegExp(
2    /^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/
3  );
source
Marta
20 Mar 2017
1^([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5})$
source
Mats
12 Apr 2019
1function validateEmail(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,}))$/;
3    return re.test(String(email).toLowerCase());
4}
5
Kais
08 Feb 2019
1
2# Language: Perl
3
4sub Validate_Email($)
5{
6   my $sEmail = $_[0];
7   my $sRetMsg = "";
8
9   my $sUserNmRegex = "^[[:alnum:]]+([.!#\$\%&'*+-\/=?^_'{|]?[[:alnum:]]+)*";
10   my $sDomainRegex = "@[[:alnum:]]+([.-]{1}[[:alnum:]]+)*";
11   my $sEndRegex = "([.]{1}[[:alnum:]]+)+";
12
13   #  Work
14   #--------#
15
16   if ($sEmail =~ /$sUserNmRegex$sDomainRegex$sEndRegex$/) {
17      $sRetMsg = "Email is valid";
18   }
19   else {
20      $sRetMsg = "Email is not valid";
21   }
22
23   return $sRetMsg;
24}
25
26my $sEmail = 'EmailExample@gmail.com';
27print "[Email:$sEmail] : " . Validate_Email($sEmail) . "\n";
28
29# OUTPUT -> [Email:EmailExample@gmail.com] : Email is valid
30
Lisa
25 May 2017
1UserSchema.path('email').validate(function (email) {
2  return email.length
3}, 'The e-mail field cannot be empty.')
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