The text content of the parent [[mdn>Web/API/HTMLElement|HTMLElement]] as [[mdn>Web/JavaScript/Reference/Global_Objects/String|String]].
Notes:
* This is just a simple wrapper for the built-in [[mdn>Web/API/Node/textContent|.textContent]] method.
* The returned String contains all non-Element text nodes, including possible ''[[mdn>Web/HTML/Element/script|