Wrapper to handle accessing undefined properties on a nested object (catches TypeErrors)

safeparse.js

/**
 * Add a standard error handling routing when accessing nested keys
 * On TypeError (accessing undefined property) it will return empty array
 * Will also take care of wrapping single elements in an array
 * usage: safeparse(() => parsedXml.status.events.event)
 * @param {Function} accessor just returns a nested key
 * @returns {Array}
 */
function safeparse (accessor) {
  try {
    return [].concat(accessor())
  } catch (e) {
    return []
  }
}