title: Restrict search and replace?
body: <p>I have this function using replace(), it finds the value '0 €' and replaces with 'no price'. It works fine but the problem is tha it match 
  this 
  '0 €'
  but also this
  '10 €'.</p>
  
  <p>I need it only to match '0 €' <strong>but not '10 €'.</strong></p>
  
  <p>js:</p>
  
  <pre><code>$('.field-name').each(function() {
      var text = $(this).text();
      $(this).text(text.replace('0 €', 'no price')); 
  });
  </code></pre>