To access DOM nodes efficiently in JavaScript, use modern selectors like `document.querySelector` and `document.querySelectorAll` for their versatility and support for complex CSS selectors.

/*To add a new element to the HTML DOM, you must create the element (element node) first, and then append it to an existing element.*/ To add text to the <p> element, you must create a text node first ...

To provide your own custom mappings, just pass an object to dom.map(..) with key value pairs of find and replace regular expressions. The key matches against your expression, the value matches against ...