code: function extractGroup (xml, tagName) {
    var itens = []
    var regex = new RegExp(`<${tagName}.+?>(.+?)</${tagName}>`, 'gi')
    var result = ''
    for (result = regex.exec(xml); regex.lastIndex !== 0; result = regex.exec(xml)) {
      itens.push(result[0])
    }
  
    return itens
  }
docs: Extract group of tags
  
  @param      {<string>}  xml      The xml
  @param      {<string>}  tagName  The tag name