Simple Regex search does not work in my script

Question

I have these information in the email from which I want to extract the phone number:

Numéro de réservation:  254207287398084
Téléphone (portable):   0782375426

When I try finding 0782375426 with Regex, it works perfectly well on regex101.com with that regular expression: /0[67][0-9]{8}\b

However, this part of my script returns null:

var msg = messages[j].getBody();
    var search = "0[67][0-9]{8}\b";
    var regx = new RegExp("(.)"+search+"(.)");
var y = regx.exec(msg);
Logger.log(y);

Would you know what is wrong in my code?

Answer 1

First I would check the value of msg

console.log(msg);

If it contains some html then try

var msg = messages[j].getPlainBody();

But I would use a simplier regex. I used String.trim() because I get the blank space before the phone number also.

function test() {
  try {
    let msg = "Numéro de réservation:  254207287398084<br>Téléphone (portable):   0782375426<br>more";

    let find = msg.match(/\s0[67]\d+/);
    console.log(find[0].trim())
  }
  catch(err) {
    console.log(err);
  }
}

1:58:28 PM  Notice  Execution started
1:58:30 PM  Info    0782375426
1:58:29 PM  Notice  Execution completed