JSFiddle - React, Tailwind, and code Playground

HTML

<p>Abcde 555-555-5555 fghij</p>

JavaScript

findPhones = function(){
  var pNumber = /^\(?(\d{3})\)?[- ]?(\d{3})[- ]?(\d{4})$/;  
  var findPhone = $('*:contains('+pNumber+')');
    findPhone.each(function(i) {
      $(this).prepend('<span>');
        alert('Phone Number Found, delete me');
      $(this).append('</span>');          
    });
}