Validate Multiple Emails Comma Separated with javascript

Question

I want to validate a string which can be an email or multiple emails separated by commas.

For example:

bill.gates@hotmail.com -> TRUE
bill -> FALSE

Answer 1

used this for php preg_match_all()

$pattern = '/([\w+\._%-]+@[\w+\.-]+\.[\w+]{2,4}[^,;\s])/';
$text = 'abc@efg.com, efg, hij@emg.com, ak@efg asfbd@efg.com ab@sdfs.com abc+efg@pqr.com';
preg_match_all($pattern, $text, $match);
var_dump($match);

array(2) {
  [0] =>
  array(5) {
    [0] =>
    string(11) "abc@efg.com"
    [1] =>
    string(11) "hij@emg.com"
    [2] =>
    string(13) "asfbd@efg.com"
    [3] =>
    string(11) "ab@sdfs.com"
    [4] =>
    string(15) "abc+efg@pqr.com"
  }
  [1] =>
  array(5) {
    [0] =>
    string(11) "abc@efg.com"
    [1] =>
    string(11) "hij@emg.com"
    [2] =>
    string(13) "asfbd@efg.com"
    [3] =>
    string(11) "ab@sdfs.com"
    [4] =>
    string(15) "abc+efg@pqr.com"
  }
}