Uncaught TypeError When Reading Undefined Text

As of version 3.5.9, the following line generates an uncaught type error when attempting to read the undefined `text`:
https://github.com/lindell/JsBarcode/blob/master/dist/JsBarcode.all.js#L190
The following minimal example from [CodePen](https://codepen.io/lindell/pen/grkZGQ) will work with 3.5.8 but not on or after 3.5.9:
````JS
const api = JsBarcode("#barcode");
api["CODE128"]("Hello");
api.blank(20);
api["CODE128"]("World");
api.render();
````
In contrast explicitly passing the text does render:
````JS
const api = JsBarcode("#barcode");
api["CODE128"]("Hello", { text: "Hello" });
api.blank(20);
api["CODE128"]("World", { text: "World" });
api.render();
````

Start by reproducing the CodePen example with JsBarcode 3.5.9 and inspect dist/JsBarcode.all.js around line 190, comparing it with 3.5.8. The fix is complete when the chained CODE128, blank, and render calls work without explicitly passing text and without an uncaught TypeError.

Written by the indexing model from the issue text.