How to get All fields name and values using single GlideRecord ServiceNow (getFields() Method)

// Get a single incident record
var grINC = new GlideRecord('incident');
grINC.query();
grINC.next();
gs.print('Using ' + grINC.getValue('number'));
gs.print('');
  // getFields() returns a Java ArrayList
var fields = grINC.getFields();
  // Enumerate GlideElements in the GlideRecord object that have values
gs.print('All fields with values:');
for (var i = 0; i < fields.size(); i++) {
  var glideElement = fields.get(i);
  if (glideElement.hasValue()) {
    gs.print('  ' + glideElement.getName() + '\t' + glideElement);
  }
}
gs.print('');
  // Get a specific GlideElement: number
gs.print('Getting the number field:');
for (var i = 0; i < fields.size(); i++) {
  var glideElement = fields.get(i);
  if (glideElement.hasValue() && glideElement.getName() == 'short_description') {
    gs.print('  ' + glideElement.getName() + '\t' + glideElement);
  }
}

Output: